Issued in 1923 during the reign of King George V, this definitive postage and revenue stamp of British Guiana presents a finely engraved portrait of the monarch in profile, paired with the colonial seal featuring a majestic three-masted sailing ship beneath the Latin motto "Damus Petimusque Vicissim" (We give and expect in return). Printed by De La Rue & Co. Ltd. using line engraving, the stamp is rendered in a striking deep violet shade on watermarked paper bearing the Multiple Crown CA motif. Measuring 20 x 25 mm, it was perforated 14 and produced for regular postal use within the colony. This issue belongs to the celebrated King George V and Seal series, a cornerstone of British colonial philately, which illustrates both imperial authority and local identity through maritime symbolism. Its design reflects the economic reliance on trade and seafaring, integral to the colony’s history. Examples in fine condition are increasingly sought after, with comparable pieces appearing in notable auctions of British Empire collections. Estimate "$40 – 60". Condition: Lightly hinged with original gum, good perforations, slight toning consistent with age.