Temp. Rubber Handstamp. Type - O3*/37

Letters are well spaced.

Birmingham. Type - B3

Example has year entered in manuscript.

Temp. Rubber Handstamp. Type - O3*/37

Letter closer together than 1730.01. Known in black; 7 and 10 January 1974.

Temp. Rubber Handstamp. Type - O3*/37

As type 1730.03, but with asterisks much lower.

Modern Single Ring (* above date)

Used in violet up to September 1976 then in black. A strike dated 15.6.1990 was in violet. Example, on a registered cover, lacks year plug.