Germany, Federal Armed Forces - navy, approximate 1961-1978, extensive inventory from approximate 1000 covers and cards with various special cancellation, Cachetstempel, etc., chronologically sorted, as well amongst other things landing craft "barbel" till "Westerwald", haulers "Amrum" till "Pellworm", ice-breaker "Kingfisher", destroyer "Hamburg" till "Z 5", Fast boat "albatross", frigates, U - boats provenance U1 - U30", U 995, minesweeper, and so on. Additional numerous documents on the subject of sailboat.