Here we are again arguing about the very minor errors and value. Point noted, "if they are common, why pay for them" has been my stance from the beginning. Another point made is are they really an error of hubbing or something else. Because most of these are found on coins of the single-squeeze method of production the hub doublings of yesteryear no longer apply. I believe these to be more of a machining error (strike)than a manufacturing (production) error, hence zero value in my book. Sorry to those who bust a gut on these, in 20 years this fad will have passed.
People pay mightily for a nice road-rashed stinkin zinkin, but I can't get anything for a fully documented, pixed MS-63 1950S RPM, a true "error coin" and with a book value of $12! Fergitabbouddit!
