Model 00-21 Serial Numbers for 1931
(Excluding Interpolated and pre 1970 entries)

Serial #ModelYear Built
4539500-211931
4539600-211931
4539700-211931
4539800-211931
4539900-211931
4540000-211931
4540100-211931
4540200-211931
4540300-211931
4540400-211931
4540500-211931
4540600-211931
4540700-211931
4540800-211931
4540900-211931
4541000-211931
4627400-211931
4709800-211931
4709900-211931