1921, "commission INTERALLIÉE DE administrative district ET DE PLÉBISCITE DE HAUTE-SILÉSIE / DÉPARTEMENT L'INTÉRIEUR PASSPORT", violet official stamp reverse on 15 Pfg. postal stationery postcard with additional franking from Opole 8. 7. 21 with handwritten text and one-line cancel "entry approves" and framed cancel of 3 lines "visa: Maurice street 8 Wroclaw" to Innsbruck, Austria with notation main poste restante, small traces, scarce franked offical postal service!