if your '51 navy is original (not repro) and no '0' in front of serial number, then made about 1853.................................. i have a 1851 also serial number 56870 could you tell me mine.at cortez@wildblue.net
frame.
Without a detailed description of ALL markings the question can't be answered.
According to Colt Archive Services , only Colt 1851 navy with serial numbers between 98000 & 132000 records are available. You may call 1-800-962-2658 ext 1391 to verify.
No way to answer without the serial number.
You will have to call Colt with the serial number to find out.
what is the serial number ????
@1851
1862
1867
1.000
The 1851 Colt navy with serial # 112343 was produced in 1861. (98000-117999) about 1861
made about 1852