Transparent stamps London Is Calling London Carta Bella High quality transparent stamps. As they are transparent you will need a methacrylate base and you will be able to see exactly where to place them. Contains 11 stamps with monuments, elements and iconic phrases of the city of London. Approximate size: 10,16 x 15,24 cm (4" x 6"). Collection: London Brand: Carta Bella Stroll through the magnificent city of London hand in hand with one of the latest collections from the Carta Bella brand. In London you'll find everything from the city's most famous landmarks and monuments, to the iconic telephone booths or its mythical double-decker buses. If you are planning to visit the city soon or you have been there recently, this is the perfect collection for you to document your best moments thanks to all its papers and accessories. Don't miss it!