Do chop marks generally add to or decrease a trade dollar's value?

I have seen trade dollars with chop marks slabbed by pcgs and noted on the label as having chop marks. Given all other things the same between 2 trade dollars, 1 with chops, 1 without, is one generally considered worth more?
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Comments
Russ, NCNE
As the certification process follows its natural progression, I think you will find that in almost all instances the non chopmarked coins will be worth more. After all, if the chopmarks consistently increased the value then soon enough more would be chopped!
When I was in Shanghai, I bought a chop from a merchant. He made one for me which was my father's initials in Chinese characters (or so he said). He made it with a dremmel tool, so I guess it isn't really "authentic". But it was fun to buy it and have something to give to my father.
Didn't wanna get me no trade
Never want to be like papa
Working for the boss every night and day
--"Happy", by the Rolling Stones (1972)
TorinoCobra71
I think it's way cooler than a regular trade dollar...
<< <i>After all, if the chopmarks consistently increased the value then soon enough more would be chopped! >>
Excellent point. It's difficult for a coin to be AT'ed or doctored in a way that will fool an expert, but chop marks would be a piece of cake to counterfeit. Before long, virtually every Trade Dollar would be chopped to death.