Need clearer pictures to determine on the DDO. And yes, on your question if a coin can be a Double Die and also have Mechanical Doubling. Look at...
[ATTACH]
Uncenter Broad Strike
Double Strike
Triple Clip
Strong Clash obverse and reverse + Rotated Dies
Strong Clash obverse and reverse
Multi - Struck& Broadstruck out of Collar
Clashed Obverse & Reverse Dies
Uncentered Broad strike
It depends on what you consider money. The 1967 DDO-007 / DDR-11 or FS-102 Kennedy half dollar in MS64 condition PCGS price guide list this coin...
Nice looking coin. I don't think it would upgrade, no since in wasting your money trying.
1. 1964-D DDO-009 2. 1964-D DDO-010 3. 1964-D DDO-005 (FS-105)
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