These two little pieces (they're about 1.5" in diameter) were bought from a charity shop associated with a synagogue in Copenhagen.
Star of David (http://www.zeitgeist-i.com/GMB/heb-1.jpg)
Menorah (http://www.zeitgeist-i.com/GMB/heb-2.jpg)
My best guess is they're a local commission from Holmegaard by a synagogue or group, c.1969 - Michael Bang was doing some near-identical small pressed work in this very seedy glass in similar colours around this time. And I have a few other localised bits and pieces definitely by the factory - such as a glass medal for a Badminton tournament - so such commissions aren't unknown.
But before I make my mind up, I thought I'd throw it into a public forum. Any other suggestions?