INTER-ALLIED COMMISSION - UPPER SILESIAN POLICE FORCES - COLONEL, 4 Mark on 60 Pfg dark greenish olive vertical pair Steelworks and Dove of Peace 1920, multiple franking on registered letter from Italian Upper Silesian police member to Rome/Italy, double-circle OPPELN 20 4 22 * * f (OS handbook no. 237.18), black single-circle official seal COMMISSION INTERALLIEE DE GOUVERNEMENT ET DE LA PLEBISCITE DE HAUTE-SILESIE - POLICE DE HAUTE SILESIE - LE COLONEL (OS handbook no. II.1.b), arrival (25.4.1922) on reverse, rare franking and interesting early inflation-period document, minimal foxing