That's interesting m thank you, just had a look in Judith Millers' 20th Century Glass too, Glasfabrik Elizabeth aka Pallme Koenig. Is it a case of attributing anything with trailing to PK? The auction blurb claims a reference at the Passau Museum which is interesting but I have read that some of their attributions have been questioned.
Either way, that tea caddy in the auction is the same maker I reckon, same cut off corners, etc, etc. After another trawl around looking at PK images, if I had to choose one or the other now, I would just hedge my bets towards Kralik but not by much. Which basically means I am still

.
But enjoying the ride!
John