No such sn in the SM Ace range
No such model number desgination was used by Colt.
you will need model name.
made by Colt about 1916
Proofhouse.com has Colt sn tables.
Proofhouse.com has Colt sn data
Proofhouse.com has Colt sn tables.
That Colt .45 government model was made in 1918.
1917
1918
Impossible to answer without knowing what model you are referring to.
Impossible to answer without knowing what model it is.
By model and serial number. Go to proofhouse.com