GB QV 1880 SG121 2s Brown JE Fine Mint cv £24000 very Rare

Very lightly mounted mint example on this rare high value surface printed issue. Fine colour and impression. Gum, no faults.  
In 1879 the Universal Postal Union recommended establishing an international color standard for stamps in the basic UPU rates. This required changing the 2½p to Blue, but that conflicted with the then-current 2sh color. Brown was selected as the replacement color, and De La Rue printed a new batch of stamps which were released in Feb. 1880. The stamps were withdrawn on July 16, 1880, creating a period of about six months when these stamps were on sale. The short-lived sale period of the 2sh Brown explains its rarity, particularly in unused condition.
A very rare surface printed issue for your collection.