The maps are inserted on fold-out sheets at the rear of each volume.

Fourth state of the slipcase.

Available 1960.
Price 63s.

1,060 sets produced??

Boxed in three batches:

500 in April 1960
310 in May 1960
250 in November 1960
An additional 250 sets may have been produced in December 1959.

Slipcases manufactured by Jarrold & Sons.

Covered with grey textured linson.
No price printed on label.
Three piece construction.
No staples.

Includes various impressions 1959-60:

FR - 8th or 9th Impressions
TT - 6th or 7th Impressions
RK - 5th or 6th Impressions

The 9th Impression 1960 of FR misidentifies itself as the 8th Impression 1960.