It looks a lot like Webb's SUNSHINE AMBER color
Dave, thanks for added that – something I'd missed. I have a few pieces of Webb Bullseye, but only in clear and amber. The green is quite scarce and also probably uranium glass.
John, if it does glow under a UV light then it is quite scarce as much of the Bullseye glass would appear to have been made in amber but not, as Dave notes, in SUNSHINE AMBER. I have several examples of Webb glass in this colour, but not in the Bullseye pattern.
Most of the Webb that was in this style has an acid etched mark on the underside, but I suspect some were made without it.
I'd agree. In the following photo showing four examples of mine, the small tumbler doesn't have a mark, but is identical in every other way. As a guide, the Biscuit Barrel (Cookie Jar for US viewers!) is about 7" (18cm) tall. Also Bullseye was created up to the 1960s, but the acid-etch mark after 1949 merely mentions 'Webb' with 'England' underneath.: : click thumbnail to enlarge : :(http://img.photobucket.com/albums/v288/dencill/RESEARCH/webb-bullseye01-t.jpg)
Lastly, if you are thinking of collecting this type of glass, the good news is that it's not expensive and even larger pieces of Bullseye can be got for as little as £10-15!