The postal stamps of the former German state of Thurn und Taxis hold a significant place in philatelic history due to their rarity, historical importance, and increasing value. Thurn und Taxis was not just any German state—it had a prestigious postal system that dates back to the Holy Roman Empire, managing communications across much of Europe for centuries. This unique background lends additional historical weight to its postal issues, which are highly sought after by collectors today.

One of the most iconic stamps from this period is the **10 Silbergroschen orange**, issued between **1859 and 1861**. This stamp is not only notable for its vibrant color but also for its relatively higher denomination compared to other Thurn und Taxis stamps of the time. Its rarity and aesthetic make it a cornerstone in any serious collection of classic European stamps. Often, the condition and postmark significantly affect its value, with unused or lightly canceled specimens commanding premium prices at auction.

Another significant stamp is the **1/3 Silbergroschen light green**, also from the **1859-1861** series. With a unique denomination reflecting a division of the Silbergroschen into thirds, this stamp is both historically intriguing and a rarity on the market. Its lighter shade of green makes it visually distinct, and it remains one of the harder stamps to find in good condition due to its relatively short issue period.

The **2 Silbergroschen light blue**, issued between **1866 and 1867**, is another rare and highly collectible piece. Its soft, pastel color and its place in Thurn und Taxis' final postal issues make it a coveted item. This stamp marks the transition period just before the absorption of Thurn und Taxis' postal system into the North German Confederation, adding further to its historical allure.

Finally, the **1 Kreuzer light green**, issued between **1866 and 1876**, is notable as one of the last stamps used under the Thurn und Taxis name before the unification of Germany. Its Kreuzer denomination and fresh light green hue are key attractions for philatelists, and it serves as a symbol of the fading independence of this historic postal authority.

Together, these stamps encapsulate a fascinating period in European postal history and remain prized artifacts, their value and rarity continuing to appreciate as time passes.