There is a "new" condition model going for 150.00 on gunbroker.com and a used one for 89.00. I have one myself and was also my first gun. I sanded the stock restained and finished it, cleaned the mechanics and she works great and is worth more to me than it would be to sell it. Its a good gun.. .hope you have enjoyed it as much as i have
$100 in mint condition
Can't tell exactly- the Mossberg 385 bolt action shotgun was made from 1964-1983. After 83, it was made as the 385 K-A, and at an unknown later time, model changed to 385 K-B. In any event, a fairly recent manufacture.