The following coin is rather interesting:
http://cgi.ebay.com/ws/eBayISAPI.dll?ViewI...em=290032222597
1) The same seller sold a virtually identical 1769 5 roubles in May 2006 on eBay.
2) If one looks carefully at the present offering, there are actually two different coins illustrated and both have the same exact nick on the neck. The coin offered in May also had this same nick in the same spot.
3) Both coins (May and September) came from an "estate" sale and the seller knows nothing about these coins.
4) The seller recently sold a 1748 ducat for $1200+ and also sold an almost identical piece in March 2006. Both were from an estate and both have a scratch at the same point. In the case of the 1748 ducat the seller claimed that he did not know the denomination but did know the fineness!
RWJ