The Croatian Post showcased the fifth Croatian crypto stamp together with the companies BitX and Marrow Labs. Croatian crypto stamps are envisioned as the perfect combination of the analog and the digital, and the fifth issue is available for purchase at post offices, at, and in the webshop at, where the Croatian Post allows the purchase of crypto stamps with cryptocurrencies.

2023 Professor Balthazar Crypto Stamp Croatian Post

Technical details

Issue Date: 07.09.2023
Designer: Ivana Vučić and Tomislav-Jurica Kaćunić, designers from Zagreb
Illustrator: Studio Diedra
Printer: AKD d.o.o., Zagreb
Process: Offset Printing
Colours: Multicolour
Size: Size: 35.74 mm x 40.98mm, S/S size: 85.60mm x 53.98mm
Values: 7.80 EUR

In order to transpose collecting into the digital world, crypto stamps have been divided into digital categories, emphasizing distinctiveness and exclusivity. Motifs from the world of Professor Balthazar appear in five different categories: Professor Balthazar with a Test Tube in 2,000 copies, Professor Balthazar’s Bed in 4,000 copies, Professor Balthazar’s Robocycle in 6,000 copies, Professor Balthazar’s Submarine in 8,000 copies and Balthazar’s Machine with a Windmill in 10,000 copies, making a total quantity of 30,000 copies.