I have some ?'s about my 99t, Not sure what's original. Ser# 353,7xx (1936). It's stamped T on the fwd end of rcvr (behind fore stock) and has ser# and T stamped on fore stock where it meets rcvr.
?. It's the only one I've seen with checkering on the cheek. Was this a factory option? It has a white ring fwd of the butt plate and under the pistol plate.
?. It has a small compass set into the top of the stock (1/2"), poly choke company. Probably not original.
? Redfield rear sight. Original.
I bought it for my daughter to shoot but when I found the T on the rcvr I got a little nervous about it. May have to find her another one.