Fales
The trademark 'Fales' belonged to a French glass company/refinery, the information on which is unknown. This marking was seen around 1920 on an etched lampshade in cameo on an auction in Paris, France according to 'Katalog Art Deco/Art Nouveau 7/1980'.
We came across only 5 inch sized 'Fales' floats of the olive, olive-green and light green glass colors.

The 'Fales' float of the olive color. The size is 5 inches in diameter. The picture was kindly provided by Richard, a collector from the US.

'Fales' marked glass float of the light green color. Sized as 5 inches in diameter. The picture was kindly provided by Todd, a collector from the US.