1938, war navy, service letter ( = DIN A5 size) with postal stamp German was navy shipãs mail no. 36 ( = torpedo boat "polecat") from 8.4.38 as well with service- and letter stamp "3. Torpedo boat flotilla cash office" to Kiel, the polecat" was at that time near the 12. Spain association to 17.6.38 before Spanish coast in the line of duty, legitimate condition with crease in the middle, Michel 100, 00