Please check the photos for grade, condition and hinging. No hidden faults noted. Types II and III pair with the right stamp without the dash before “MOCKBA” variety. Overprint top lines are 14.2 mm and 15 mm. Perf 12 x 12.25. Signed by the famous Russian stamp expert and collector Z Mikulski. Catalog value from Scott’s 2024 Stamp Catalogue is unlisted as offered. OTHER ITEMS: Sheets, albums, books, boxes, pages, collections, etc. Please refer to the item description. All payments must be in US funds.