Another suggestion might be Podebrady Glassworks?
I take it you mean the Bohemia Glassworks, at Podebrady? Only the Svetla nad Sazavou plant, Works Number 4 of Bohemia Glass was known to make coloured drinking glass and that was from the late 1970's. A label for Bohemia Glass from the Svetla factory can be seen at Anne's Glass Gallery, on the Labels page.http://glassgallery.yobunny.org.uk/
For most of the Communist period the labelling was square or rectangular, and no label of that shape is shown in Langhamer's pretty comprehensive list in "The Legend of Bohemian Glass" 2003, Prague.
I am not sure why anyone would suggest the Podebrady works, and IMHO, a most unlikely candidate.