15 cent green overprint in mixed franking with Michel-no. 208, 210, 212 and 233 as correctly franked on registered cover from "Klaipeda I 12. V. 25" to Bern with reverse railway cancel (TPO) "Berlin - Marienburg" and arrival postmark Bern from 14. V. 25, faultless condition, detailed photo expertize Prof. Dr. Klein BPP, very scarce franking, Michel 4. 735.-