See
GlassGallery file of four images, each with click image to enlarge feature.
H. 5¾" 14.6cm, w. 8¼oz 232g.
Note the clear dividing line between the opalescence at the thick base of the vase and the applied feet, showing that the feet are in plain flint glass. I have also included a threaded shell / cornucopia posy on a mirror plateau (very like Silber & Fleming 5009 and possibly Walsh) in one of my photographs, as this also has a small rudimentary stem in flint glass, and both have this fiery opalescence.
I can understand all the opalescence in Walsh Canary Opalescent and these two pieces, as, if allowed to cool naturally, thicker glass like my shell posy, the base of the thorn vase, and where the pattern is in
Opaline Brocade, would be able to slightly crystallise or "strike". This is particularly evident on Dave's fabulous ewer/vase
here, where the spout has been pulled so thin that the opalescence never had a chance to develop.
The puzzle is the band of opalescence two thirds of the way up my thorn vase. Is this from reheating at the glory hole? Is this the technique used to produce the banding seen on much Powell glass?
How does "straw opal" fit into this? Does this term describe the banding effect or is it descriptive of the glass itself?
... and why the flint feet / rudimentary stem? Was opalescent glass expensive?
Bernard C.