Made by Mossberg, and labeled with the Western Auto Revelation brand, your rifle is a Model 640K. If it has no serial number, it was made between 1959 and 1967. Rifles made in 1968 and later were required to have serial numbers. The model went out of production in 1985.
Revelation Model 107 was made by Mossberg (Model 640K)
Here is your answer: http://www.gundata.net/western_auto_revelation.html
Mossberg
go to e-gun part
No sn data in the public domian.
HOW OLD AND HOW MUCH,REVELATION MODEL 316BA 16 GA FULL CHOCK SHOT gun
Not sure on when it was made but it was produced bt Savage. The Model # Savage used was model 73. If you need parts thst how I was able to repair my Revelation model 101
No sn data in the public domain.
The Revelation Model 105 .22 caliber rifle was manufactured from 1971 to 1988. It was made by Marlin and marketed by Western Auto.
I can't tell you how old it is, but I can tell you it's a "Savage model 94D" made for Western Auto under the Revelation brand name.
Made in 1968.
No published sn data