Michelle, I think the 3rd digit is a 0 not a 6, which would make it 790139.... which is a number registered to Hoskins Rose (importers) on 8 Feb 1934. Hoskins Rose were one of the importers of Czech glassware, particularly that by Libochovice, as Marcus indicated above.
Marcus flagged up patterns 1467 & 1491 - 1467 is the same shape as yours but with alternate X and clear panels, whereas yours are all clear like the 1491 pattern but in a different vase shape. I do agree with Marcus though, that this will be a Libochovice pattern, possibly shown in one of the catalogues which aren't publicly available.