IF your Revelation rifle is a bolt action .22 Magnum, with a box magazine, it was made for Western Auto by Mossberg as their 640K model. These were made from about 1959-1985. Some of the cross reference data is a little fuzzy.....
The Western Auto Model 150M Long Rifle was produced by Marlin Firearms Company for Western Auto Supply Company. This firearm was part of a line of guns made for retail by Western Auto, which was a popular retailer in the mid-20th century. The Model 150M is a .22 caliber rifle known for its reliability and affordability.
Mossberg
$50-125, depending on WHICH rifle, and it's condition.
25-90 USD
50-150
50-100
Marlin
$75-$150, depending on condition. That is if your rifle is a semi-auto. It would be a Marlin 49. However, Western Auto also had a 150M, which is a Marlin 39A- Value $300-$450
Western Auto sold several 22 long rifles. I need the model number to help identify it.
Your rifle is a Savage Mdl 46. Depending on condition, value is $50-$125.
You need the services of a gunsmith.
It was made by Mossberg around 1930 plus a few years. It was a low budget bolt action rifle Mossberg model 321 or 320 under the Western Auto name