For generations of philatelists, the greatest threat to a collection was assumed to be external—a clumsy tear, water damage, or a hungry insect. However, modern paper chemistry has revealed a much more terrifying, internal threat: Paper Acidification. This is a…
For collectors of vintage stamps, the ultimate mark of quality lies not just in the central image, but on the very edges of the paper. The tiny teeth and semi-circular valleys that border a stamp—known as perforations—are more than just…
In the global logistics and e-commerce supply chain, postage is commonly viewed as a commodity of infinite supply. Under normal conditions, national postal administrations print billions of stamps annually, dynamically managing stock levels to meet consumer demand. However, a highly…