Lot 30507 – 1937 (Apr 8) Printed envelope from the Olympic Pos

1937 (Apr 8) Printed envelope from the Olympic Post Office for return of money, with Reichs Sport hs, “Bersondestelle für Gammlermarken…”, sent registered with Berlin “P.R.A” cds (no franking), plus 1942 usage of official Olympic printed envelope with inscription and bell logo on reverse, crossed out and used for field post, unusual duo