78s_addict

The precedent is there are no precedents.
https://www.discogs.com/forum/thread/903229

1st Record/1st 78: Glad All Over / Lend Me Your Comb

1st LP: Milo Goes To College (1st press, New Alliance Records)

1st 7": Be Your Bro signed

100th 78: Tomorrow You'll Be Gone / Love Me Or Leave Me Alone

500th LP: Old No. 1 (first press, black RCA label)

100th 7": Sweet Child O' Mine

1,000 added to collection: Leather And Lace

1st one of Grandpa’s records: Kenny Roberts (2) / The Down Homers - Out Where The West Winds Blow / Who's Gonna Kiss You When I'm Gone?

600th LP: Sworn Enemy - As Real As It Gets

200th 7”: We Lose A Little Ground

Pressing Plant Information for LPs:
ⓤ = Pressed by United Record Pressing, Nashville, TN
United Record Pressing
AL = Allentown Record Co. Inc.
Allentown Record Co. Inc.
AR = Allied Record Co., Inc., Los Angeles, CA
Allied Record Company
BW = Bestway Products Inc. Bestway Products Inc.
HRM = Hauppauge Record Manufacturing Ltd. Hauppauge Record Manufacturing Ltd.
LY = Shelley Products, Huntington Station, NY
MG or MGS = MGM Record Mfg. Division, Bloomfield, NJ
MO = Monarch Record Mfg. Co., Los Angeles, CA Monarch Record Mfg. Co.
MPO - MPO, French pressing plant
MPO
PL = Plastic Products, Inc., Memphis, TN
PP = Plastic Products
PR = Presswell Records Mfg. Co., Ancora, NJ
Presswell
PRC / PH = PRC Recording Company, Richmond, IN
PRC Recording Company, Richmond, IN
PRC-C or PRC-W = PRC Recording Company, Compton, CA
PRC Recording Company, Compton, CA
QRP - Quality Record Pressings, Salina, KS Quality Record Pressings
RI = Philips Recording Co., Richmond, IN
SO = Sonic Recording Products, Holbrook, N
SP = Specialty Records Corp., Olyphant, PA
Specialty Records Corporation
W = H.V. Waddell Co. (Not on Atlantic Releases)

CAPITOL RECORDS
"JW" in runouts denotes a Capitol-Jacksonville pressing.
0 = Capitol Records Pressing Plant, Jacksonville
—◁ = Capitol Records Pressing Plant, Winchester
✲ or ☆ (prior to '64) = Capitol Records Pressing Plant, Los Angeles

ᴍᴀsᴛᴇʀᴇᴅ ʙʏ ᴄᴀᴘɪᴛᴏʟ - Capitol Mastering

RCA RECORDS
ɪ = RCA Records Pressing Plant, Indianapolis
H = RCA Records Pressing Plant, Hollywood
R = RCA Records Pressing Plant, Rockaway

MCA RECORDS
◈-P-◈ = MCA Pressing Plant, Pinckneyville
回-G-回 , ⧈-G-⧈ = MCA Pressing Plant, Gloversville

COLUMBIA RECORDS
CT or CTH = Columbia Records Pressing Plant, Terre Haute
CP, P = Columbia Records Pressing Plant, Pitman
CS or CSM = Columbia (Santa Maria, CA; very infrequently)
G or G1= Columbia Records Pressing Plant, Carrollton, GA
Ƨ, S1, S2 = Columbia Records Pressing Plant, Santa Maria
T, 1T, T1, 2T, T2 = Columbia Records Pressing Plant, Terre Haute

Other Dead Wax Etchings
i...i - Mastered By Sean Magee
Alex i...i - Mastered by Alex Wharton at Abbey Road Studios
AT = Mastered at Atlantic Studios
AT/GP (handwritten) = mastered by George Piros at Atlantic
AT/DK (handwritten) = mastered by Dennis King at Atlantic
ATLANTIC STUDIOS DK (stamped) = mastered by Dennis King at Atlantic
ABS = Alex Sadkin
ab or AB = Abbey Record Mfg. Co. (? we still don't know the exact meaning)
⍺ʙ or aB = Al Brown (5)
AMP = ABC-Paramount
BG = Bernie Grundman
BK = Bill Kipper
BDI or B.D.I. = Brian Ingoldsby
ʙʟ⍂ɪʀ or ʙʟ△ɪʀ = Chris Blair (mastering)
"cg" + "☮" = Chris Gehringer
cB = Chris Bellman
AZ CB = Chris Bellman at Allen Zentz Mastering
Chet = Chet Bennett
CSB ♪♪ = Carlton Batts (usually with F/W)
⋐riteriɑ = Criteria Studios
DT = Dave Travis
dg = David Gold (3) (Gold Star Studios)
EDP [in oval] = Europadisk Pressing & Mastering
ℰMW = Electrosound Group Midwest, Inc.
ESR = Elektra Sound Recorders
FW Ѽ or FWNY = Frankford/Wayne Mastering Labs
GC or Baseball symbol ⚾ (can be mistaken as H in circle) next to Sterling = Greg Calbi
GK = Gilbert Kong
GF = Greg Fulginiti, of Artisan
GOL = Goldisc Recording Products, Inc.
H.W. = Howie Weinberg at Howie Weinberg Mastering or before 2011 at Masterdisk
HERbiE :^) = Herb Powers Jr. (mastering)
ℐ⍺ = Jack Adelman
JG = John Golden
JJ + GOLDEN = JJ Golden
JJ = John Johnson (3)
JL - Jim Loyd
K SST or Kr SST - Mastered By - K SST at SST Brüggemann GmbH
LH = Lee Hulko
LW or LWP = Longwear Plating (maker of metal parts from lacquers) Enter as "Mastered At"
M = Mercury
McM = Ron McMaster at EMI NY
MCR - Mastered At – Master Cutting Room
MG = MGM Records Division in Bloomfield, NJ (Pressing)
MF = Mike Fuller
MILES. ABBEY ROAD - Mastered By: Miles Showell at Abbey Road Studios
NT (interwined) - Mastered By: Nick Townsend
PR or PRC or (PR) = Philips Recording Co. (maker of metal parts from lacquers)
♡POGO = Keith Olsen's Pogologo, Inc. (Productions)
Porky or Porky Prime Cut = George Peckham
Pecko Duck = George Peckham
sƒ = Sam Feldman
RL = Bob Ludwig
RCA = RCA Victor
RG = Rob Grenell, mastering engineer for Atlantic in the late 60's
"ɑ" looks like Q = Allied Record Company (usually followed by B-XXXXX)
R3 or R4 = Mastered at Rainbo Records (on Capitol Pressing)
︵︵〰 (birds) or メ or ❀、= Brian Gardner
RJ = Ray Janos
RAYS = Ray Staff at Trident Studios, London
RM = Ron McMaster
RB = Ron Boustead (Precision)
RKS = Ryan Smith (2)
SM = Stephen Marcussen
SH = Steve Hall
SG = Steve Guy
SON or Son = Sonic Recording Products, Inc.
SST - Mastered at SST Brüggemann GmbH
sᴛᴇʀʟɪɴɢ - Mastered at Sterling Sound
TC w/sᴛᴇʀʟɪɴɢ - Tom Coyne
TJ = Ted Jensen
TLC = The Lacquer Channel
TD = Terry Dunavan
WM (W integrated atop M stamp) = Wakefield Manufacturing
⁄|⁄ǀ⁄|⁄ǀ⁄|⁄K = Randy Kling (mastering)
E A S T - Pressed at Specialty Records Corporation
Double arrow [⟷] - Pressed at Hauppauge Record Manufacturing Ltd.
▷ with a dot inside - Pressed at Hauppauge Record Manufacturing Ltd.
Circles with Drumsticks - Mastered at Artisan Sound Recorders
Ⓤ - Pressed at United Record Pressing
¢ - Mastered By Tom Coyne

PRESSING PLANT CODES
Starting in 1979 and continuing to the late 1980's, the center labels of US PolyGram sublabels began showing two-digit number ID codes signifying from which pressing plant the record originated. A partial list of confirmed plants and their corresponding numbers are as follows:
6 = All Disc Records, Inc.
16 = Sonic Recording Products, Inc. (pre-ca. 1975), Goldisc Recording Products, Inc. (1975 to ca. 1983), Electrosound Group Midwest, Inc. (post-ca. 1983)
18 = Presswell
19 = Bestway Products Inc.
22 = Allied Record Company
24 = Monarch Record Mfg. Co.
25 = Columbia Records Pressing Plant, Santa Maria
26 = PRC Recording Company, Compton, CA
49 = Specialty Records Corporation
53 = Keel Mfg. Corp. (pre-1981), Hauppauge Record Manufacturing Ltd. (post-1981)
54 = Shelley Products
56 = Columbia Records Pressing Plant, Pitman
57 = Columbia Records Pressing Plant, Carrollton, GA (post-1981)
60 = Sound Makers
70 = RCA Records Pressing Plant, Indianapolis
72 = PRC Recording Company, Richmond, IN (post-Dec. 1972)
73 = Columbia Records Pressing Plant, Terre Haute
76 = Hub-Servall Record Mfg. Corp. (post-1970)
There are some numeral codes which have so far been unconfirmed as to their corresponding pressing plants, including 30 (either Plastic Products or Peter Pan Industries) and 75 (presumably MCA Pressing Plant, Pinckneyville); plus other manufacturing codes (i.e. for cassettes) including 12 and 35.

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----◄ ▣-G-▣ ◈-P-◈ ❀ ▽ △ ∆ ▷ △ ◁ ∇ ◊ ∆
1234567890
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——— ™ ✧ ★ ♠ ♣ ♥ ♦ ♪ ♫ ✝ — |
$ € ¢ £ ¥ ₩ ₪ ฿ ₫ ₴ ₹ ♥ ♦ ♠ ♣ ← ↑ → ↓ ✓ ♀ ♂ ☺ ☆ ± × ÷ ~ ≈ ≠ ≤ ≥ ½ ¼ ² ³ Δ ™ ® ° § ∞
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①②③④⑤⑥⑦⑧⑨⑩⑪⑫⑬⑭⑮⑯⑰⑱⑲⑳⓪⓵⓶⓷⓸⓹⓺⓻⓼⓽⓾
ᴀʙᴄᴅᴇғɢʜɪᴊᴋʟᴍɴᴏᴘǫʀsᴛᴜᴠᴡxʏᴢ
W V U T Ƨ Я Ọ ꟼ O И M ⅃ ᐴ Ⴑ I H Ꭾ ᖷ Ǝ ᗡ Ɔ ᙠ A

WEA Manufacturing Inc. Information
Cinram, Olyphant, PA
Glass Mastered At: A mastering SID code of "ifpi L90#" WITHOUT a "wea mfg. Olyphant" logo in the mirror ring of the CD indicates the disc was glass mastered at this plant.
Pressed By: A mould SID code of IFPI 2U** indicate a CD has been pressed at this plant.

WEA Mfg. Commerce
Some CDs show the WEA Mfg. Olyphant logo in the matrix area but also have "wea mfg./CA" stamped on the hub/clamping ring. They should be credited like this:
Glass Mastered At - WEA Mfg. Olyphant
Pressed By - WEA Mfg. Commerce

Wea Mfg. Commerce pressing credits will always contain a Mould SID Code of IFPI 2V**. They may often be credited on releases with a 'wea mfg. Commerce', 'wea mfg. CA' or 'wea CA' in the CD matrix or stamped on the clear plastic hub.

[Release cat#] V01 °°°
2003-Present - Cinram GmbH
1990-2003 - Warner Music Manufacturing Europe

Earliest 1st generation DADC pressing. No zero before DIDP #####, and no 'circle/triangle' logo on disc. Pressed sometime between September 1984, when U.S. DADC CD manufacturing plant started making CD's, and sometime in 1985, when the 'circle/triangle' symbol began to appear.

1st generation DADC pressing. No zero before DIDP 20009, and contains 'circle/triangle' logo on disc.

SID - MOULD CODES
14 - EMI Compact Disc pressing plant, Greenbridge, Swindon, England
15 - EMI Compact Disc BV pressing plant, Uden, Netherlands
16 - EMI Compact Disc pressing plant, Jacksonville, Illinois
38 - Zomax Optical pressing plant, Plymouth, Minnesota
45 - Sony Records pressing plant, Japan
50 - Sony Records DADC pressing plant, Terre Haute, Indiana
51 - Sony Records DADC pressing plant, Terre Haute, Indiana
61 - Cinram, Richmond, IN
72 - Sony Records pressing plant, Pitman, New Jersey
80 - Cinram International, Canada
94 - Sony DADC Austria AG
1T - Technicolor Records pressing plant, California
2T - Nimbus Records pressing plant, Sunnyvale, California
AAH - MediaMotion Manufacturing BV, Uden, Netherlands
AKN - Sony DADC, Mexico