Posted By:
Frank Wakefieldadding bleaching was my edit afterthought... I agree that bleaching is unlikely. It would have taken extreme precision, patience, and about a month.
Scraping seems more likely. And it may well be an innocent scrape. It might be an untampered printing error. But as PC pointed out, if a fellow had Kleinow, bought this Leinow, then he'd be dissatisfied until he finally found himself an affordable Kleino.
I may well eat those almost words up there if it turns out legit. But seeing it identified as some new error by a slabbing company won't convince me that it is legit... Hopefully, someone here bought it, and can post us a good scan of it.