Semi - Postal Issue. PROOFS AND VARIETIES: 1922, 10,000r/25r in block of 16 (two top horizontal rows with low ink of surcharge), 9 imperforate stamps, 4 of which without surcharges and 19 imperforate proofs printed on white smooth or laid paper, full OG or no gum as produced, VF and rare group, Est. $500-$600 (Image)