I would say so, who would fake a very very atypical colour to fake. The signature is spot on to others I have been looking at, maybe made later into the 1930s as the Americans liked black glass? Very typical Art Deco colour, but Iunderstand where you are coming from. There is a pure clear glass bowl currently on sale which is also atypical. My is it right radar would say yes, based on shape signature Pontic and wear. Just very unusual colour but very Art Deco at the same time, interesting to see what others might say. Thank you E
Sometimes my dyslexia gets in the way of seeing the flipping obvious with signatures apologies
