Only if you are into obscure Americana, and don't mind the trouble of using lower pressure stuff.
The number of Tobins I have seen that are off the face is way out of proportion to other guns of similar age. I suspect the design may be more prone to this due to the material removed from the frame to house the lockwork-the sideplates only mount the sears and sear springs, hence, the gun has more in common with a boxlock than a true sidelock. The off the face condition is more apt to be a bent frame than wear to the lump or knuckle, and, I supect modern, hot loads used in an old gun are usually to blame.
I wouldn't sell my restocked 16 for less than I have in it, but, I decided long ago not to impose any durability tests on it. Low pressure 2 1/2" English stuff is all it gets now. Pretty nice weather only.
If there are case colors in protected areas, the gun was case colored.
Best,
Ted
