What is worth collecting? A guide for investors and collectors (2026)
Collecting is more than just a hobby; it is a way to express yourself, discover history, and build long-term wealth. Today, more and more people are combining their passion with...
Patina on coins – what is it and how does it affect their value?
Patina (often referred to as "toning" on silver) is a natural, thin layer of chemical compounds that forms on the surface of a coin as a result of the metal reacting with its environment....
What is notaphily? A guide for beginner banknote collectors
https://www.mennicaskarbowa.pl/pl/zloto/
What is bullion money? A guide for investors and those interested in the history of money
Bullion money is a form of money made of metal with its own intrinsic value—primarily gold or silver. It is therefore "backed" by the bullion itself. Through...
What is a proof stamp?
A mirror stamp—known internationally as Proof (English) or PP—Polierte Platte (German)—is a method of preparing stamps and discs and a special minting process that gives...
The most popular bullion coins — gold and silver
Bullion coins – both gold and silver – have been attracting the attention of investors and collectors around the world for years. They combine the value of precious metals with timeless design and...
