The postage stamps of the former German state of Hanover from 1859 to 1865, particularly the yellow and red stamps featuring King George V, hold great significance for philatelists. These stamps are not only prized for their rarity and historical context but also for their detailed craftsmanship, which reflects the last years of Hanover’s independence before it was annexed by Prussia.

The yellow and red stamps, both issued during the reign of King George V, are two of the most iconic issues from this period. These stamps prominently display the profile of King George V, the last monarch of Hanover, whose reign ended when the kingdom was incorporated into Prussia after the Austro-Prussian War of 1866. King George V, who was blind, is depicted in an elegant side profile surrounded by ornamental flourishes, a design that has come to symbolize the Hanoverian monarchy’s final years.

The yellow stamp, known as the "10 Groschen" stamp, was first issued in 1859. It was part of a larger series that included several denominations, but the yellow 10 Groschen stands out due to its striking color and higher value. The stamp was primarily used for heavier or international mail, making surviving examples, especially those in good condition, relatively rare and highly desirable among collectors. Its vivid yellow color and fine detailing make it one of the most visually attractive stamps from this era.

Similarly, the red stamp, valued at 3 Groschen, is another key issue from this period. It was used more frequently for domestic postage, which means there are more surviving examples than the yellow 10 Groschen, but high-quality specimens are still prized. Its deep red color and fine engraving highlight the care taken in the design of Hanoverian stamps.

Both the yellow and red stamps from this era are considered valuable not only for their aesthetic appeal but also for their historical significance. They were issued during the kingdom’s final years and serve as a lasting reminder of Hanover’s sovereignty before its annexation into Prussia. These stamps continue to be coveted items in philatelic collections, appreciated for their beauty, rarity, and the rich history they represent.