I believe these are Czech. The pattern is shown (in a range of sizes) in thirties Markhbeinn catalogues (available from Pressglas-korrespondenz.de) - Markhbeinn was a French company who imported/ sold a lot of Czech glass. In the past, i've seen this shape attributed to Riedel, but I think Inwald may be more likely. Hopefully Marcus or Jindrich may be able to add more.