Few collecting areas combine frequency and extreme rarity as impressively as the stamps of Queen Elizabeth II. On the one hand, billions of definitive stamps were produced, often leading to the misconception that material from her reign is generally mass-produced. On the other hand, some specimens with genuine manufacturing defects are among the rarest modern philatelic objects.

Initially, the search for particularly rare and high-quality specimens focused on the early period with definitive stamps from the 1950s and 1960s, based on photographs by Dorothy Wilding.

At the 28th Universal Postal Congress in Dubai, the Universal Postal Union (UPU) unveiled its first artificial intelligence (AI) agent, thus heralding the start of a new, data-driven transformation phase in the global postal network. The pilot model was developed with initial funding from the Japanese government and is based on the new Unified Data Platform (UDP), which for the first time consolidates extensive postal and non-postal data in a central, secure environment.

The AI ​​agent aims to analyze postal systems at the country level, diagnose weaknesses, and provide concrete recommendations for improving reach, reliability, and resilience. The UDP (Unique Postal Distribution Platform) is considered a key innovation in this process, as it aggregates high-quality data from various sectors such as commerce, logistics, and air traffic, and enables granular, UPU-controlled data sharing.

For a century, Corinphila has been the oldest philatelic auction house in Switzerland. Its participation in major international philatelic exhibitions in 2026 generated additional global attention. This international interest was impressively reflected in the Corinphila auctions held in Zurich from June 2nd to 6th, 2026. With high participation from collectors, investors, and dealers from Europe, North America, Asia, and the Middle East, and strong results, the auction series confirmed the continued high demand for top-quality classic philately.

At the Freiburg auction of Deutsche Briefmarken AG, the focus of the company's 11th large-volume auction was on extensive collections and dealer stocks. Particularly sought after were globally diversified inventories with high expansion potential, which attracted considerable interest from major collectors and professional bidders.

The Bulgarian editions of the 1970s were printed in sufficient quantities. However, it is precisely in this context that rare and spectacular varieties occasionally appear that are not recorded in catalogues and therefore deserve special attention.

The first variety, offered a few weeks ago by the DBA Freiburg, concerns stamp number 2491 from the "30 Years of Border Protection" issue dated May 15, 1976. The stamp normally depicts a border guard with binoculars and a German Shepherd. A pair of vertical, mint-condition stamps has come to light, in which the upper stamp remains completely unperforated, while the upper row of perforations is missing on the lower stamp. This unusual combination indicates a significant disruption in the perforation process. The pair was valued at €150, a reasonable price considering the dog motif.