Portugal has an incredibly rich currency history.
Helder Silva was six years old when his grandfather took him for the first time to a numismatic fair. As director of the numismatic association and one of the largest coin collectors, everyone knew his grandfather. Thus, Helder also became interested and slowly but surely developed a great interest in coins especially from the Middle Ages, on which Helder Silva wrote articles that are posted online. He was soon asked by various magazines to write for them. He also helped the numismatic association with writing and revising their large catalogue (Alberto Gomes).
As one of Portugal's largest currency experts, Helder Silva is an asset to Catawiki. He knows Portugal's rich history of currency through and through. From ancient Rome and Portuguese colonies to the Middle Ages and the Republican period. In addition to evaluating coins and compiling auctions, Helder Silva sees himself primarily as a Catawiki ambassador. He is convinced that Catawiki is the best way to buy and sell coins in Portugal. That's something he loves to show to his big business network, so more and more beautiful coins are finding their way to the auctions.
1. Seller registration
Register as a seller for free. You can offer up as many special objects as you wish that are of premium quality.
2. Submit items
Once your items and descriptions have been approved by our experts, they are scheduled for auction.
3. The thrill of auction
Experience the auction excitement as thousands of enthusiasts discover your lots!
4. Make money safely
You won’t be asked to ship your items until the buyer has transferred payment. Catawiki manages payments between buyers and sellers.