I am a new member and this is my first post. There seems to be a wealth of knowledge in this group. I have an 1859 sharps carbine. It is Straight breech with patchbox. It is pretty rough but I can read the serial number. It is 44407. The weird thing is it has no saddle ring and never had one. It also is still percussion and was never converted to metallic cartridge. Is it possible it was part of the navy contract for carbines in 1861? Was there a navy contract for carbines not part of the rifle contract? Were there 1859 civilian carbines that possibly had no saddle ring? How rare is the carbine if it never had the saddle ring? Thanks for information!