Blue Book of Gun Values
Yes
Marlin
The REAL ptrs41 was a gas operated semi auto antitank rifle first made in 1938, and was approximately .55 caliber.
50-125 or so
value depends on overall condition and caliber............
Marlin; depends on the barrel and loads
About $200 in excellent condition.
50-300 usd
50-100 or so
Depending on condition, $150-$250
The Revelation 22 Model R100B caliber rifle was manufactured by Mossberg. The company Western Auto Supply is known to sell both these rifles as well as the cartridges for the rifle.
Impossible to answer with any degree of factuality.