I thought the Stabler cut off was that little nub in front of the trigger?🤔
That Spencer is in excellent shape (“bore not considered for antique firearms.”😉)
And yes, Burnside made a lot of Spencers at the same time they were making Burnsides. Spencer could not keep up with demand, especially the 1865s. I don’t think Burnside made any full length rifles though, only Spencer did.
And I haven’t specifically been checking for them at shows last year but maybe 10 years ago I handled an 1865 in about the same shape and the guy wanted $2500 for it and he said he’d negotiate..so add 10 years, I’d say the $3000 previously quoted by Sharps is darn close.