The first Ordnance Survey covers were cloth-coated, and were intended almost entirely for general purposes. The remnant of this tradition survived until 1959 on Isles of Scilly, 1933. Such covers were issued on maps at scales from 25 inches to the mile to 25 miles to the inch. Many of these would have been issued in thin paper envelopes, some with Fisher Unwin's imprint. In Nos 1-3 below, “short” implies dimensions of approximately 100 x 160 mm, “tall” 95 x 180 mm
