In good working condition $150 to $200
value marlin glenfield model 60 22 simi auto rifle
$200
$125.
Your Glenfield model 75C will go for between 50-75 dollars on today's market.
I found the value of a Marlin/Glenfield (similar serial) to be at about $2,700. I'm looking too, but that's the price I was able to find.
$90.00 to $40.00 depending on condition.
between $100 & $300 (nz dollars)
50 to 80 dollars
It is worth $75 to $135 depending on condition.
About $75 Dollars Used
That is basically a Marlin Glenfield Model 30 as made for the OTASCO chain of stores in Oklahoma. The model number is derived from the base model (30) and the year of sale (in this case 1980). It will have no additional value over a standard Marlin Glenfield Model 30 in equivalant condition, about $150 if excellent. sales@countrygunsmith.net
Around $75.