Bidspirit auction | United States - Modern Errors

United States - Modern Errors and Varieties - 1993, American Musicals, three imperforate vertical proof se-tenant booklet panes of four 29c values in full color, in blue color and in blue and magenta (design is slightly different from issued stamps), all with full OG, NH, VF and very rare, C.v. $1,250 for finished design pane only, others priced with ''-'', Est. $1,000-$1,200, Scott #2770a P, b, c