Featured Old & Heavy Wheel-Cut Crystal Tumbler, Unmarked; Pattern & Maker, Please?

I know...I gotta do better with my pics; these are in the first full sun inna couple weeks, with a new camera, without a dark filler for pattern definition...I'll open with these, an' beg y'alls patience.
This was said to have been one of a crystal set; a wedding present in 1915; this was the only one of this size remnant; there were 6 slightly taller an' 5 others of various size. It is without flaw; it does show very slight wear on the bottom, hard to capture.
It is ~3 3/4" high, ~3" rim diameter, ~2 7/16" foot diameter; it weighs 300 grams.
2 panels (pic 3) are 8-pointed star within another 8-pointed star; the other 2 panels (pic 1, 2 & 5) are 'pineapple' with diamond facets, each facet cut with a cross. The bottom (pics 4 & 6) has a uniform 12-point star in a flat-ground base. All cuts are apparently polished; there are no sharp edges, anywhere.
I turn to your collective wisdom for the maker, an' the pattern name if possible; I've no clue about brilliant cut ware, at all. Thanks for lookin'!

 

I think the pics turned out pretty well-sorry can't help w/ the pattern.

 

I have a modern set of Knachtman glasses that are similar but this one is way nicer.

 

There's a FB group on American Brilliant Glass. They are very helpful and the group has lots of photos and catalogs you can search. You may want to check with them.

 

Thanks, ascot...I have no connection to FB, but my kids do...I'll ask 'em to help. Good suggestion!

 

Your pictures are good... as long as they are close ups against a plain background, people can see them.