The rare coin market so far in 2026 has been somewhat volatile, with greater price swings happening over a shorter period of time when compared to historical norms.
Obverse Description
Bulgarian text; artist Ivan Milev; detail from Milev’s painting, Art and the Crown of Thorns; poster promoting Milev’s first 1925 exhibition in Sofia
Reverse Description
Bulgarian text; scenes from Milev’s paintings, A Woman Harvesting, The Bulgarian Madonna, and Wedding of the Dragon
Catalog Information
Send Catalog Feedback
Subject: I would like to contribute catalog info to CDN for 2020 Sig 23: Radev/Tzvetkov Intro: 04 09 2020
Body: Referring page: http://www.greysheet.com/prices/item/2020-sig-23-radev-tzvetkov-intro-04-09-2020/gsid/190558 GSID: 190558 Title: 2020 Sig 23: Radev/Tzvetkov Intro: 04 09 2020
View more data, info, and visualizations. Get access to retail and wholesale pricing as well as auction data.
Pricing Data Not Yet Available
We are constantly adding to our pricing database and prioritize user requests. Click below to request pricing for this item.
Request Pricing
Greysheet News
Free three-day Fall Expo brings Stack's Bowers Galleries Showcase Auction lot viewing, a 2026 U.S. 250th Anniversary coins, educational programming, and one of the hobby's biggest dealer floor to the Baltimore Convention Center.
The Heritage Auctions United States currency sale of October 6 to 9 realized $8,736,186 for 2,194 lots.





