Saw this for sale on ebay and kept an eye on it since I am curious what it would go for. Nearly flipped when I saw the final price. http://www.ebay.com/itm/1983-Error-...7FNaL4LTD3wXHNlndlJg%3D&orig_cvip=true&rt=nc It's a ruble commemorating the 100th anniversary since the death of Friedrich Engels. There were proof coins struck in 1985 but in 1988 some of the earlier coins were restruck including this particular coin. This coin was accidently muled with a 1983 die, making it rather scarce. I have one as shown I don't think I paid more than 50 dollars back then. Maybe you have some stashed somewhere?