RUSSIA-Entire (1931) Man wearing gas mask. Postal card (O) with illustrated advertising 'Do not be afraid of a gas attack if you use a gas mask!' (ImageA)

GERMANY-Meter cancel (1957) Mask with headdress. Red meter cancellation on envelope: 'Neue Grosse Volkerkunde.' (ImageA)

GUYANA-Proof (1971) Masquerade dancer. Imperforate proof mounted on John Waddington proof card with control punch. Scott No 150, Yvert No 388. Some toning on card, also affecting the proof itself. (ImageA)

PAPUA & NEW GUINEA-Artwork (1995) Cruise ship. Tourists photographing mask. Reproduction of artwork for PNG tourism issue se-tenant pair by artist Graham Wade. Design measures 32 x 11 cm on larger piece of paper. Scott Nos 852-3. The original artwork, which correspondence suggests is archived at PNG post, was reproduced to return a copy to the artist. Sismondo photo certificate. (ImageA)

SENEGAL-Deluxe proof (1997) Various masks. Deluxe proof on card of strip of 5. Scott No 1279a. (ImageA)

SENEGAL-Imperforate (1997) Various masks. Imperforate strip of 5. Scott No 1279a. (ImageA)