Thanks Gentlemen for responding. I've talked to Tarleton many times, but I believe I'm in uncharted territory.
Terry, actually the blocks on those Niedner .22 rifles are what have caused my question. They are different than the ones you see on Marine rifles and even in vintage Marine pictures.
The tapered blocks on Marine rifles, that are credited to Niedner, have wings that spread out from the block and cover more area on the receiver. All the commercial Niedner rifles I have seen so far, do not have these wings. So the design is similar but different on Marine rifles.
It is a very long story, but I believe the ones with wings are made by the Marines post WWI. I'm basically trying to see if I can find one Niedner commercial rifle with those wings.
But here is a original Marine tapered block, compared to the ones on the .22 Niedner rifles that sold.
And here is a pic of the wings circled on the blocks. I do not see these wings on all the commercial rifles I have seen so far.
