I've a set of glasses that appear to be the blanks for the ordinarily pantograph-engraved 'Elon' series. I've not managed to track down any that aren't decorated.
So I was wondering if 'Elon' was ever released in an undecorated state, or if there was a plainer - more obscure - parallel series, or if someone just took these home before they made it to the engraving department.
Thanks for looking.