Thanks everyone for the help on these rifles. I don't have a lot of books for reference on these types of rifles. I am a collector just not these types. I kind of thought that with the Mums still intact that they could be something a little special. Now would anyone like to do an estimate as to their value. I have done some searching but can't seem to find any for sale with the Mum still visible. If you don't want to post your estimate to this thread feel free to PM me.
One other thing the numbers on the bolt of the T38 do not match the receiver and I cannot find any other assembly numbers on the exterior of this rifle. Where would other assembly numbers be or is this just a MM rifle?