Wexler has some 2015, DDOs and 1 DDR http://doubleddie.com/1542214.html
This is what your looking for and a good article too http://www.error-ref.com/peripheral-doubling/ at least for USOA
Let me give you a hand, everyone should know about " Single Squeeze Hubbing " by now . First look for notching, and thickness, get a better image...
Here's Mr. Potter site http://koinpro.tripod.com/
I'll know next month, we have a show at the American Polish Cultural Center, on August 30, 2015 ...
I live in Michigan and Ken Potter is my friend and neighbor . We have a local show show next month and I will see him then . I stated nothing...
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