Measure approximately 4-3/4” x 5-3/4”

The Red Ensign or "Red Duster" is the civil ensign of the United Kingdom of Great Britain and Northern Ireland. It is one of the British ensigns, and it is used either plain or defaced with a badge or other emblem, mostly in the right half.

It is the flag flown by British merchant or passenger ships since 1707. Prior to 1707, an English red ensign and a Scottish red ensign were flown by the English Royal Navy and the Royal Scots Navy, respectively. The precise date of the first appearance of these earlier red ensigns is not known, but surviving payment receipts indicate that the English navy was paying to have such flags sewn in the 1620s.

History of tobacco silks In Cigarette packs;

Originally issued in American cigarette packets between 1905 and 1917, these ‘giveaways’ proved a very popular promotional item which was taken up by twenty British tobacco manufacturers at the advent of the First World War (1914). Silk cigarette inserts continued to be issued following paper restrictions announced by the government in 1917, but had faded out by the mid-1920s, except for a small resurgence in 1933-4. The subjects included religion, cricket, football, art, flags, army and naval badges, flowers, and clan tartans. Silk inserts were an adaptation of the popular cigarette cards. In North America between 1900 and 1936 silk cigarette cards, or inserts, were produced by tobacco companies as calculated promotional giveaways for men to pass on to women.