25-125 USD or so
Proofhouse.com has a store brand chart that might help
Mossberg
Try gun shops, gun shows, want ad, for sale ad, estate sale, garage sale, on line auctions, egunparts.
That is the model number for a 1990 Yamaha RT 100A.
50-125 USD or so
Stevens.
It has two General Electric TF34-GE-100A turbofan engines.
this is pipe size dn100 ( Diametre Nominal 100) =100A
My catalogue states that the rifle was made by Mossberg (Model 320-321) Mossberg made a variety of single shot and repeating bolt action rifles starting in the 1930. they were low-priced and were intended for extensive use. However it does not state when they stopped making these rifles. About 30 different models were made.
50-125 USD; probably 50-60's. Serial numbers were not required before 68 I personally have a Revelation Model 100A and i also have the Mossberg Model 340KA and the only difference is that the 340ka came with a clip fed magazine and the Revelation is just a single shot. As for the year the were made between 1955-1968. and for those who didnt know, the government didnt make gunmakers put serial numbers on the weapons until 1968. thank you
http://www.havlinsales.com/22rifle.htm
No because 100a-35 is an algebraic expression containing two terms.