United States, Scott 578-579, used. 1923 1c & 2c Rotary Press definitives blocks with matching fancy Star-in-Circle cancel, complete set, individual APEX Certificates. These stamps were made from coil waste of Scott Nos. 597 and 599 and are very scarce. A choice matched set of blocks that I’ll sell separately upon request. The free listing tool. Get your own map of past buyers. The item “US Sc 578-579 used. 1923 1c & 2c Rotary Press cplt, matching blocks of 4, Cert” is in sale since Wednesday, March 06, 2013. This item is in the category “Stamps\United States\1901-Now\ Used”. The seller is “varisell” and is located in Fountain Hills, Arizona. This item can be shipped worldwide.