Yes i did but loetz has also with the same spelling but could not find the picture.

And i have other decanters with the same spelling its post or pre war is what makes other spelling on the stamps but they are exactly the same like my other
set.

http://www.bihl.nl/BIHL_backstamps.htm

Did you notice the spelling ??

it looks many like loetz marker. but in glas then dont know if they did ceramics.

The end of World War I brought with it the end of the Austro-Hungarian Empire, and as a result, Klostermühle found itself within the fledgling Czechoslovak democracy. Loetz marks after this date no longer have the word Austria – when the country is named, it is Czecho-Slovakia the last mark is one of my own on a smoked cristal decanter