Hi Morerams,
Sorry to report, my SRS research books have a limited listing for Starr Carbines and no serial #s even close to the one you Emailed to me.
The book, "Carbines of the US Cavalry, 1861-1905" by John D. McAulay may be of some help; also check out: "U.S. Civil War Carbines" by Whisker, Yantz, and Hartzler, there are 6 pages devoted to the Starr Carbine.
Two Flints