Other Mails to or via Singapore or Penang. 1939 (Nov 28) - 1940 (Jan 2) Covers (3) and a postcard from Java to Germany all with boxed "OPENED BY BRITISH / NAVAL AUTHORITIES", the three covers with red censor seals, two censored in Germany, one cover with a clipped corner, otherwise fine. A scarce censor cachet (applied at Singapore, or possibly on a British naval ship), used on mail intercepted by the Royal Navy. (4). Photo on Page 150. (Image1)

1939 (Sep 9-19) Covers from Thailand franked 15st to Penang or England (registered) or the 10st printed matter rate to USA, all with circular "PASSED BY CENSOR / (arms) / PENANG". A scarce censor cachet only recorded in September 1939, one an exceptionally fine strike. (3). Photo on Page 150. (Image1)

1939-40 Covers from Holland, USA or China to Singapore, or Philippines to France all with violet numbered boxed "PASSED BY / CENSOR" comprising number 2 on an early cover received at Singapore on 8th September 1939 and forwarded to Netherlands Indies, cover from USA redirected back to the sender with two censors numbered "5" and "11" (with clipped lower right corner), 1939 (Aug 25) cover from Manila with number "10" (lower right corner clipped, an early use), and number "68" on a cover from China sent via Hong Kong. (4).

1939-41 Covers from the Netherlands Indies to Europe (5), Thailand (2), China, Sarawak, USA, Kedah or Singapore, various rates, all censored in Singapore or Penang, five types of censor cachets with various numbers, the 1940 (June 1) cover to USA franked 145c for KLM service via Europe but handstamped "RETOUR AFZENDER / Verbinding per KLM / Verbroken" and returned (this air route suspended after Italy's entry into the war), then reposted with a further 50c in stamps to go Trans-Pacific air route via Hong Kong. (12).

1939-41 Covers from Philippines to Switzerland or Palestine; Indo-China to India (2), Australia (2), U.S.A or N.Z forces in Egypt; or Thailand to G.B or Australia, various rates, all censored in Singapore or Penang, seven types of censor cachet with various numbers. (10).

1940-41 Covers from Timor to USA, China to South Africa, Madagascar to USA, South Africa to Netherlands Indies (franked 1/8 air mail) or Kenya to Netherlands Indies all censored in Singapore with triangular "PASSED FOR / TRANSMISSION" (3, two with "Singapore" at base) or "PASSED BY / CENSOR / SINGAPORE" (2), various numbers; also 1939 registered cover from Mauritius to Saigon franked 40c via Singapore with Mauritius and Indo-China censors, 1940 cover from Egypt to Perak franked Army Post 10m with army censors, and a Palestine cover to Johore but bearing "Returned to Sender by the Censor" label, an unusual group. (8).