Please Help ID 12" Purple Pinwheel Chalice Vase

[scredence2005]

This is a very heavy 12" glass chalice vase.  Is it pressed glass again?  Any help is appeciated.  Thank you.

[gabla]

Yes it is pressed in a mold. Probably the same company but a different pattern.

[mama*pbs!]

Resembles New Martinsville Glass Company No. 556 Royal pattern.

New Martinsville Glass Company No. 556 Royal:
http://www.eapgs.org/patterns/pattern-details.php?idx=5069

Sometimes misidentified as Imperial Glass Company No. 404 (aka 'Feather Notching and Button' or 'Thunderbolt'):
http://www.eapgs.org/patterns/full-images.php?idx=5165&pat=2070

Imperial #404's feature motif is a hobstar, while New Martinsville #556's is a spinning or whirling star.