So now that the Wexler doubled die listings for nickels have been taken over by Brian Ribar and moved to the Brian's Variety Coins website, how do we correctly credit WDDO/WDDR listings?
In reading Strike It Rich with Pocket Change, they still call the listings in the style of Wexler: WDDR-001. But that book was published a while ago. Is that still a valid style, or is there a new preferred style?