WP #145 has the symbol Iyo 友 stamped in the middle of the seal button.
The seal button actually consists of two seals. The first seal has the stamp with 友. The second seal is larger and is applied over the top of the first seal. This is why you can't feel any raised lettering on the seal.
The seal also has radial lines around the edges giving it the classic pie seal look. Pie seals are typical on many of the floats produced in Taiwan.
This float is a beautiful yellow green color.
It measures 12 inches in diameter.