This float with mark WP #145 'Iyo' 友 has a interesting waffle like imprint on the glass of the seal. I've seen other WP #145's with the same effect, although it's still a mystery as to why.
It has a classic Pie Seal that you typically see with float that are made in Taiwan.
There are also fine amber swirls emanting fron the seal button.
It measures approxiately 37 inches in circumference or about 12 inches in diameter.