Juliarugula I got curious and looked into the stamp creating process. Artists submit portfolios of their work and a stamp idea. Then usps “stamp designers” can choose pieces of their art to turn into stamps. So I’m guessing the stamp designer thought blown centers = cool wavy movement as another response said 😂. In the press release for this stamp there is a history of dahlias and it talks about the plant origin, hybridizing, popularity, forms but it doesn’t mention it as being a popular show flower, so I’m guessing they were not aware of “show flower beauty standards”.
