fyllehund dog decanter

hoping someone can date, name etc this glass decanter made in the shape of a dog or gin pig.  I've seen a few online that were Scandinavian but also a few that were English.  Does anyone recognise the etched mark on his bottom?

I can't make the mark out, but I'd guess mid-to-late C20 and Swedish.

It's a traditional design across much of Europe, but the glass is very white (glass from 100+ years ago tends to have a greyer hue) and the fact that it's hand-signed without being an artist-designed object points towards the latter half of the last century. And this form seems to have been preserved in Sweden more than anywhere else - newer Danish ones, for example, tend to have four individual legs rather than two stylised loops.

many thanks Nic - that's really interesting.