Here's Ro Purser float that's a unique turquoise / light blue color.
This float has the classic mark WP #195 'Ropasa' stamped on the seal. It's an excellent stamp showing all points.
Ro Purser floats were known for their very high-quality construction, since they were made to be fished at great depths.
This float measures 14 1/2 in circumference or nearly 5 inches in diameter.
This was one of the floats that came out of an impressive collection from Georgia that I purchased in the Spring of 2023.
Ro Purser discussing this float (2/26/24):
"That color comes from copper carbonate. I would intentionally not mix it well into the glass but in loose layers/clumps so it would do the swirl thing like that. It took about 1/2 of a cup of the carbonate (consistency of flour) for about 60 lbs. of the recycled sheet glass I used. I loved that color. It was big in the handblown glass scene on the coast in the early 1800’s."
"Variations of it fall into the color known as (fittingly enough) Aquamarine. Early 1700’s 1800’s it was used a lot. Google “early south Jersey hand blown aquamarine glass” and you’ll see some beautiful glass in the ‘close to this’ color. This one is this a nice clear color because my base glass for the floats was excess clear glass from a glass company in Eureka. Perfect for the job because it’s formulated to be clear and really tough. The Jersey glass probably didn’t have my nice colorant I did and there was more iron in their sand which adds the greener tint.