Matrix Number Prefixes: Acoustic Recordings:
L 7 1/2 inch (19 cm) disc
Lx 10 3/4 inch (27.3 cm) disc
Lxx 12 inch (30.5 cm) disc
Original Issue Numbers:
40000 series 10 3/4 inch disc (sf)
66000 series 10 3/4 inch disc (sf)
84OU0 series 12 inch disc (sf)
57000 series 10 3/4 inch sf side number**
C(70000), R(70OW) Sf part (Stamper) number
2800 series 7 1/2 inch disc (sf)***
0200 through 0900 series 10 3/4 inch disc
600, 900 series 10 3/4 inch disc
X 10, X 100 series 12 inch disc
Ro 200 series 12 inch disc
Reissues on Non-Odeon Labels:
(From original stampers)
Ariel 5000, 6000 series Ariel, 10 3/4 inch disc
Ariel 8000 series Ariel, 12 inch disc
C 5000 series Regal, 10 3/4 inch disc
AM 30000 series American Odeon, 10 3/4 inch disc (sf)
70000 series Okeh, 10 3/4 inch disc (sf)
50000 series Okeh, 10 3/4 inch disc (sf)
800 series English Columbia, 12 inch disc
F 110, F 120, F 130 series Columbia Fonotipia, 10 3/4 inch disc
Rerecordings (non-microgroove):
78-2077 Avoca****
12 CRS (Collectors' Record Shop)
3000 series IRCC (International Record Collectors Club)
* Single face numbers are denoted "sf." All other numbers are for double face.
** Different numbers used on each side of a double face disc.
*** Single face numbers , used on either side of a double face disc.
**** Diameter of dubbing is not necessarily that of the original recording.
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