Looks like a good old gun to me, if the barrel is in good shape and the action works you could have a gunsmith check it over, replace the butt stock and it should be a shooter. Those old single shots are nearly indestructible.
I couldn't find a reference to a "New Hitco" right off, but I suspect it's what is known as a Hardware Store Gun, there were a lot of different makers but the most common were Crescent Fire Arms Co of Norwich,CT, W.H. Davenport Arms Co also Norwich,CT, Iver Johnson's Arms & Cycle Works Fitchberg,MA and Stevens Arms & Tool Co of Chicoppe Falls,MA.
As to a value, not too terribly much, as is without the butt stock 60-80$ as a parts gun (if it's a shooter) fixed up with the stock replaced, you might get 150$ or so again as a shooter..... If you want to part with it send me a PM and I'd be happy to make you an offer to have it as a project gun.