U.S.A. (1964) Nuclear merchant ship Savannah*. Special cancel on postal card commemorating first port of entry (Bremerhaven) of the first nuclear powered merchant ship.
AVAILABLE AT $30
GERMANY (1959) Air defense in the nuclear age*. Envelope with roller cancel: Luftschutz auchim Atomzeitalter Hilf mit im Bundes-Luftschuts-Verband.
AVAILABLE AT $15