ChinaUnited States (USA) 1906 PSE 2c Red / Postage Dues
Postal Stationery Envelope cancelled by Milwaukee. Wis. Duplex addressed to Belgium, underpaid with TAX 15 centimes handstamp and Belgium Postage Due 10c Red Yvert 5, and 20c Olive Yvert 6, tied by Brussels CDS. Very fine. (pt)
