[goofy]

I see some forend and stock damage(scratches & dents)There is some paint off of the receiver and lever,I can't tell about the barrel.
From what I can tell I would put your gun between 85% to 95% but remember I do not have any close up's of the gun so with out it in my hands it is still tuff.
The book say's the 66 at 85% is valued at around $74 and at 90% is valued at $75. 95% is $100 now add 33% because it is a .410.
Now this is what the blue book says. Ware you are around the US will determine what you can sell it for.
The model 66RS is worth more(But not much more) it was a 20ga slug gun with a 22 in. barrel with rifle sights.
Some people will pay more then it is worth(For a number of reasons) others will not.I see these guns for sale for more then they are worth and SOMETIMES they sell other times they just sit and gather dust.
The most I would pay for this gun is $150 and only if it was to be added to my collection.
Mike