I have a Marlin "Texan" 336 30-30. It has a straight stock,gold saddel ring and gold trigger. It has no letters in the serial number but ends in 69. Shoots like a $1200.00 rifel too. Made in 1969.
I've seen them sell for $800.00
You hardly ever see these for sale.
$350.00 to $400.00 if in very good condition and straight Marlin. Take off $100.00 to $50.00 if it's a Western Auto, Glenfield,Walmart,Sears. These have Birchwood and Not Walnut stocks.
You Don't Have A PIG Problem If Ya Want to Charge $200.00