I am looking for info on this pistol....I dont know alot about it but from researching it on the internet i have came up with that it is called a 'tip-up' and is made by J Stevens A&T Co. and the dates it was made was from 1888-1915. It has a 12" barrel and also has a removable stock. It is also a .22 caliber single shot. I am looking for a more exact date on when it is from, and possibly even what edition it is. There are very little markings and info on the gun its self. Also im looking for an approximate value on it. If anyone has any info about one of these it would be greatly appreciated. Thank you =)

They were called "Bicycle Rifles" . A Google search will turn up lots of info.

http://www.thehighroad.org/

try looking in the "firearms research" forum, lots of very knowledgeable people there