Hanna signature from 1940-1955. Prefixes were Number over Letter 0/J-3/H, Number over Date 0/47-5/54, and Letter over Number A/0-A/5.

Wilson signature from 1955-1956. Prefixes were Letter over Number A/5-B/4, and Number next to Letter 0A-0K.

Fleming signature from 1956-1967 without a security thread. Prefixes were Number next to Letter 0L-1H.

Fleming signature from 1956-1967 with a security thread. Prefixes were Number next to Letter 1J-9S. The security thread is a thin line impregnated into the paper that runs from top to bottom of the note.

Hanna signature from 1940-1955. Prefixes were Number over Letter 0/L-0/Q, Letter over Date A/47-U/54, and Letter over Number G/0-H/2.

Wilson signature from 1955-1956. Prefixes were Letter over Number H/2-J/9, Number over Letter 0K, and Three Numbers 001-020.

Fleming signature from 1956-1967 without a security thread. Prefixes were Three Numbers 021-107.

Fleming signature from 1956-1967 with a security thread. Prefixes were Three Numbers 108-301. The security thread is a thin line impregnated into the paper that runs from top to bottom of the note.

Hanna signature from 1940-1955. Prefixes were Number over Letter 0/X-8/V. The notes were issued in the following order, X, W, R, S & V, making 8V the last prefix. Many have confused the fact that the 8W illustrated is not the last prefix, just because it comes alphabetically after 8V.

Wilson signature from 1955-1956. Prefixes were Number over Letter 8/V-5/Y, and Letter next to Number A0-A5.

Fleming signature from 1956-1967 without a security thread. Prefixes were Letter next to Number A5-E8.

Fleming signature from 1956-1967 with a security thread. Prefixes were Letter next to Number E8-Y9, and Number next to Letter 10A-12L. The security thread is a thin line impregnated into the paper that runs from top to bottom of the note.

Hanna signature from 1940-1955. Prefixes were Number over Letter 0/F-4/F.

Wilson signature from 1955-1956. Prefixes were Number over Letter 4/F-5/F, and Number next to Letter 6F.

Fleming signature from 1956-1967 without a security thread. Prefixes were Number next to Letter 6F-9F, and Letter next to Letter AA-AB.

Fleming signature from 1956-1967 with a security thread. Prefixes were Letter next to Letter AB-AS. The security thread is a thin line impregnated into the paper that runs from top to bottom of the note.

Hanna signature from 1940-1955. Prefixes were Number over Letter 0/U. For the first 31,000 notes the prefix was 0, for the remaining notes it looked more like O.

Wilson signature from 1955-1956. Prefixes were Number over Letter 0/U, and Number next to Letter 1U.

Fleming signature from 1956-1967 with a security thread. Prefixes were the Letter R. The security thread is a thin line impregnated into the paper that runs from top to bottom of the note.