KoniOmega serial numbers
From Camerawiki.org
Overview
Table 1. Known/observed serial numbers^{[1]}
Model  Distributed  Manufacturer  Serial Numbers  
KoniOmega Rapid (silver trim)  globally  Konica  A1615–A6581; B7260–B14404^{[2]}  
KoniOmega Rapid (black trim)  globally  Konica  B11007–B17483  
Konica Press  Japan only  Konica  A 4429–A 7115; B 8805^{[3]}  
KoniOmega Rapid M  globally  Konica  40057 T–45667 O  [for details see Table 2 below] 
KoniOmega M  globally  Konica  44754 I–48462 E  [for details see Table 2 below] 
Konica Press 2  Japan only  Konica  61017 N–61853 O  [for details see Table 2 below] 
Koni Omegaflex  globally  Konica  70004 T–72388 T  [for details see Table 2 below] 
Rapid Omega 100  globally  Mamiya  30004–40476  
Rapid Omega 200  globally  Mamiya  60045–69900  
Rapid Omega 200 KE58[A]  U.S. Govt  Mamiya  6211666163^{[4]} 
KoniOmega Rapid M, KoniOmega M, Konica Press 2 and KoniOmegaflex
The serial number can be found on the back of the camera, to the left of 'PATENT', except for the KoniOmegaflex where the serial number is on a metal bracket on the bottom of the unit.
Table 2. Known Serial Numbers for the KoniOmega Rapid M, M, Press 2 and KoniOmegaflex and their inferred months of production^{[5]}
Year  Month  Letter  Rapid M / M  Press 2  Omegaflex  Rollfilm holders 
6701  JAN  M  
6702  FEB  Y  
6703  MAR  B  
6704  APR  E  
6705  MAY  S  
6706  JUN  T  40057 T  
6707  JUL  K  40096 K–40138 K  
6708  AUG  O  40193 O–40252 O  
6709  SEP  N  40398 N–40623 N  
6710  OCT  I  40676 I–40871 I  
6711  NOV  C  2269 C  
6712  DEC  A  
6801  JAN  M  
6802  FEB  Y  
6803  MAR  B  40931 ?  
6804  APR  E  
6805  MAY  S  
6806  JUN  T  40981 T  70004 T  
6807  JUL  K  
6808  AUG  O  2289 O  
6809  SEP  N  
6810  OCT  I  
6811  NOV  C  41011 C–41279 C  
6812  DEC  A  41344 A–41582 A  70178 ?  
6901  JAN  M  41594 M–41883 M  
6902  FEB  Y  41904 Y–42148 Y  70301 Y  
6903  MAR  B  42199 B–42447 B  
6904  APR  E  42482 E–42712 E  
6905  MAY  S  42786 S–43007 S  2666 S  
6906  JUN  T  43052 T–43057 T  70317 T–70323 T  
6907  JUL  K  
6908  AUG  O  43132 O  
6909  SEP  N  61017 N  3004 I  
6910  OCT  I  
6911  NOV  C  3295 C  
6912  DEC  A  3477 A–3525 A  
7001  JAN  M  
7002  FEB  Y  43187 Y  70377 Y–70384 ?  3807 Y–4129 Y  
7003  MAR  B  70674 B–70694 B  4236 B  
7004  APR  E  70795 E  
7005  MAY  S  70832 S  
7006  JUN  T  43191 T–43281 T  61258 T  70861 T–70942 T  
7007  JUL  K  43347 K–43640 K  61354 K  
7008  AUG  O  43723 O–44004 O  
7009  SEP  N  4885 N  
7010  OCT  I  71000 I  
7011  NOV  C  71110 C–71116 C  
7012  DEC  A  
7101  JAN  M  44020 M  
7102  FEB  Y  4723 Y  
7103  MAR  B  61539 B–61671 B  71219 N??71270 N??  
7104  APR  E  5369 E  
7105  MAY  S  5643 S  
7106  JUN  T  
7107  JUL  K  71360 K–71387 K  
7108  AUG  O  44024 O–44085 O  61853 O  7018 O  
7109  SEP  N  44125 N–44412 N  7170 N  
7110  OCT  I  44505 I–44754 I  7480 I  
7111  NOV  C  44800 C–44835 I  71426 C  7919 C–7942 C  
7112  DEC  A  71489 A  8728A  
7201  JAN  M  44834 M–44931 M  
7202  FEB  Y  44956 Y–44974 Y  
7203  MAR  B  10361 B  
7204  APR  E  71569 E–71611 E  
7205  MAY  S  45002 S–45167 S  10907 S  
7206  JUN  T  45227 T–45250 T  13483 T  
7207  JUL  K  
7208  AUG  O  
7209  SEP  N  
7210  OCT  I  
7211  NOV  C  
7212  DEC  A  
7301  JAN  M  
7302  FEB  Y  71637 Y–71708 Y  14082 Y  
7303  MAR  B  
7304  APR  E  45267 E–45287 E  
7305  MAY  S  45026 S–45028 S  71765 ?  
7306  JUN  T  45322 T–456xx T  
7307  JUL  K  14745 K  
7308  AUG  O  45667 O–45698 O  
7309  SEP  N  
7310  OCT  I  
7311  NOV  C  
7312  DEC  A  16559 A  
7401  JAN  M  46077 M–46138 M  71781 M–71806 M  16700 M–16887 M  
7402  FEB  Y  46226 Y–46277 Y  
7403  MAR  B  46295 B–46410 B  71816 B  
7404  APR  E  46477 E–46583 E  
7405  MAY  S  46613 S–46687 S  
7406  JUN  T  46799 T–46823 T  
7407  JUL  K  46959 K–46990 K  71822 K–71923 K  
7408  AUG  O  47069 O–47123 ?  72059 ?  
7409  SEP  N  47237 N  
7410  OCT  I  47333 ?  72117 I–72183 I  
7411  NOV  C  47543 C  72285 N  
7412  DEC  A  47746 A–47748 A  
7501  JAN  M  47967 M  
7502  FEB  Y  
7503  MAR  B  
7504  APR  E  48462 E  
7505  MAY  S  
7506  JUN  T  72388 T 

Notes
 ↑ I am very much indebted to Peter Lanczak (Germany/France) for his data set which augmented mine (GitzoCollector).
 ↑ A1615 is the lowest known serial number (based on over 100 silver trimmed units known). The number A1615 is shown in the initial 1963 promotional brochure for the KoniOmega Rapid. This makes little sense, unless one assumes that Konica's production numbering followed on from where the production run of the Simmon Omega 120 left off. The overall, 'missing', quantity is indeed in the ballpark of the production numbers documented for the Omega 120.
 ↑ It seems that the units badged as 'Konica Press' were taken from the main production run and merely furnished with a differently badged rangefinder housing.
 ↑ The military model is builtidentical with the RapidOmega 200, and as far as can be discerned from the serial numbers, the units supplied to the military were taken from the main production run and furnished with the military specifications tag affixed to the base of the camera.
 ↑ I am very much indebted to Peter Lanczak (Germany/France) for his data set which augmented mine (GitzoCollector).