[Below: Envelope with souvenir sheet honoring Mannheim, June 4, 1937. Front.]

[Below: Close-up.]

[Below: Reverse.]

[Below: Close-up.]

[Below: Envelope with Finnish censor tape, August 22, 1944. Front.]

[Below: Reverse.]

[Below: Finnish Feldpost postcard.]

[Below: Close-up.]

[Below: Postcard reverse.]

[Below: Finnish Feldpost postcard. The reverse is blank.]

[Below: Close-up.]

[Below: Close-up.]

[Below: Finnish Feldpost postcard. The reverse is blank.]

[Below: Close-up.]

[Below: Finnish Feldpost postcard. The reverse is blank.]

[Below: Close-up.]