The serial number that you provided,indicates that your marlin model 1893 rifle was made by marlin in 1902.
I would try the marlin firearms web site for a answer to your question.PLese be sure which model marlin you have.
the only rifle produced in cal 32-40 was the model 1893,either carbine or rifle,please check the model number again.
3240
3240
3240 = 23 x 34 x 5
Answer: 3240 " = 90 yards.
The GCF is 72.
12 divided aided by 3240 = 0.003703703703703704
The answer depends on 3240 WHAT: seconds, days, years?
The LCM is 3240.
3240 = 23 x 34 x 51
23 x 34 x 5 = 3240