Mostly one of any type (as defined by KM numbers, including decimals) from the United States and from England/Great Britain (not overseas territories) that I do not yet own, both circulating and non. I'd prefer not to let it go for less than a $30 value considering how infrequently I've seen dekoblaj steloj for sale, and with how much I enjoy the Esperanto language. But as a one-of-each type collector I'll take a good opportunity--should I find one--to grow and diversify my collection without losing *too* much money XD