Featured Antique Flint Glass?

Bought this small thin tumbler. Stands 3 1/8" tall. 1 pictures shows 2 of the 3 seam lines in the glass. Glows bluish under black light. Is this flint glass? and would anyone know maker?

 

I think it's Uranium Oxide or Manganese...idk about Flint glass though.

 

I don't know about flint glass. Can't tell the difference. I have one piece identified for me as such and it rings like no other piece of glass I've ever had. The resonance is amazing, but I don't know if that's an indicator. (It's a nice sized, very simple vase.)

 

wlwhittier, Uranium Oxide and maganese will glow green under black light. Google research tells me flint or leaded glass will glow bluish under black light.

moreotherstuff, this glass does not ring.

 

Right as rain, an' thank you for differentiating that point!

 

I always thought Flint glass, was a bit heavier and if you "snap" your thumb and finger on it where it may be thinner, it would 'sing' or 'ring' a bit.....and I know little about uranium glass other than what I read here!!

AND SORRY, I just re-read @moreotherstuff's post again......he already addressed the singing potential.......sorry it's not Flint.......but a nice looking glass just the same!!​

 

Thanks everyone. I guess the only other option is leaded glass.

 

Flint glass is leaded glass. Leaded glass, (flint glass, crystal), will ring, is heavier, and more refractive than unleaded glass.
I'd guess your glass is not leaded. 20th or 21st century.
Check with tallcakes though. He seems to be the molded and pressed glass king!