LONDON
Number in Diamond (1st Series)
Number in Circle (2nd Series)
LONDON
Number followed by A,B or C in Circle
LONDON
Letters above numbers
LONDON
All letters
ENGLAND and WALES
All numbers in OVAL
ENGLAND, WALES and ABROAD
Letter followed by numbers
SCOTLAND
All numbers in RECTANGLE grid
SCOTLAND
Edinburgh 131 only
IRELAND
All numbers in DIAMOND grid
OFFICES ABROAD
Single letter in oval
C = Constantinople
G = Gibraltar
M = Malta
S = Stamboul
TREATY PORTS
A1 = Amoy
C1 = Canton
F1 = Foochow
M1 = Macao
N1 = Nigpo
N2 = Nagasaki
S1 = Shanghai
S2 = Swallow
Y1 = Yokohama