Model 81 Centennial issue

[gwwhited]

I own a Model 81- 22 cal, bolt action, tube fed rifle. I has a Marlin Emblem on the stock with 1870-1970 on it and a "gold" trigger. The serial number is 6933255. I received it as a Christmas gift 1970, and do not have an owners manual. I would appreciate any information on this as far as value, or how I can obtain a manual.
I have pictures but do not know how to post them.

[7437]

I have same rifle, I know nothing either about it. maybe somone know out there????