According to a couple searches the value should fall in the $275 - $375 range depending on condition.
1978
Depending on condition between $0.00 and about $140.00
With the serial number that you have supplied,your Marlin(Glenfield) rifle was made in the year 1980.
The Glenfield model 25 wasn't a Marlin, so determining what it actually is is not easy. Obtain a copy of Modern Gun Values and try and determine the actual manufacturer. A Glenfield version is typically worth 75% of the manufacturer's value.
A Marlin Glenfield Model 60 .22 caliber semi auto rifle with a squirrel engraved in the stock and a serial number 20160178 is worth between $100 and $300. The actual value varies greatly based on its overall condition.
60-70s; 10-125 USD or so
60-95 dollars.
In excellent condition, @$75-$100.
Depends on what condition the gun is in?
in great condition the max is 110.00 at a local gun show but this all depends on condition and presentation so between 0-110.
10-100 USD depeding on specifics of condition, finish, wood, sights, accessories, box, papers, etc..
what is a model 65 golden 50 worth