1839-O Half Dime - Major Die Rotation

Very cool! glad someone got back to you. Also, thanks for the link.

 

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Apparently these are actually common. Guess it would all lead down to how far the rotation is off. We now know what die pair it was but that's a hard question to answer. Isn't the stationary die for the the reverse? I thought it was but could be mistaken. Also, if we don't have that information then how do we know if it were struck CCW or CW?

 

I bet you could find that out, on the Seated link, I bet you could search here on CT and find out which was the Anvil die.

 

The reverse. AI does wonders.

 

I really don't think it matters knowing which die (obverse, reverse) was the anvil and which was the hammer when determining die rotation. Both can be installed into the coin press rotated. One rotated CW and the other CCW. Such as the subject coin of this thread. The hammer die could have been installed rotated 17.14 degrees CW and the anvil die installed 17.14 degrees CW. Producing the 34.28 degree die rotation exhibited by the coin. Or the installation of the dies could have been installed CCW.