Years
Model
Prefix letters
Serial Number Series
McCormick Deering W-9, WR-9, WD-9, WDR-9
1940
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
501 - 577
1941
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
578 - 2992
1942
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
2993 - 3650
1943
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
3651 - 5393
1944
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
5394 - 11458
1945
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
11459 - 17288
1946
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
17289 - 22713
1947
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
22714 - 29206
1948
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
2907 - 36158
1949
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
36159 - 45550
1950
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
45551 - 51738
1951
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
51739 - 59406
1952
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
59407 - 64013
1953
McCormick Deering W-9, WR-9, WD-9, WDR-9
WCB, RCB, WDCB, RDCB
64014 - 67919