For a fee, Colt will send you a historical letter.
Made in 1909.
1909
about 1909
No way to answer since the serial number was not provided.
Made in 1909
1909.
Manufactured 1909
1909
If you go to this site and follow through ,they, perhaps, can answer you questions. http://www.coltsmfg.com/archive.aspx
1909
Manufactured 1909
The Colt model 1908 hammerless .25 with that serial number was made in 1909