FORWARD to Photographic covers - part 3
Reference numbers in square brackets and artists' initials are explained here
420
420.1
420.2
420.2a
This cover is also at 407.2d. But note OS in frame with Tourist Information icons as 407.1/2/3/4 and 420.1. The icons replaced by pictorials at 420.2.b.
420.2b
420.3
420.4
420.4.a
420.4.b
420.5
135x238mm. Double sided map. Fourth Edition (Revised). 1994
. 
421
422
423
424
425
426
FORWARD to Photographic covers - part 3