The above should have said
The base pontil mark area is not
indented to the same degree mine is.
And that one looks more square on the shoulders than mine as though it was blown in a squarer mold or something. Not sure how they are blown to be honest. So perhaps mine might be a little earlier, but I think nevertheless around that time frame of 1831.
Having had a good trawl around I think the naive style wheel engraved decoration is right for the period of late 1700-first third 1800's?
I found some glass flasks from Cedersbergs glasbruk which operated around the same time in Sweden (1781-1838 I think?) and the decoration is kind of similar in naivety although not in the actual depiction. I think mine is hops and leaves with the birds.
I have also found a Cedersbergs piece that has birds on it but not been able to find any Bohemian/German pieces with birds on in a similar vein. So I'm leaning towards it being Scandinavian rather than German as a hunch.http://www.auction2000.se/auk/w.Object?inSiteLang=&inC=AS&inA=20130424_1354&inO=308http://www.xn--vadrdenvrd-s5af.se/s/1120951/flaska-glas-markt-1772/
these pieces apparently come from Cedersbergs glasbruk and there is one glass with a flower on that looks similar to the flower on my flask. Also these are dated around the same period I think?http://precisensan.com/antikforum/showthread.php?35555-Glasb%E4gare-anno-1831/page2
I'm not entirely sure where this little flask comes from but I think in translation it is possibly Cedersberg glass?http://precisensan.com/antikforum/showthread.php?18984-Cedersberg
Most of the flasks I've seen that are these kluk kluk bottles or klunkeflaske seem to originate in Norway and Denmark rather than Sweden, although I understand from what I've read, that they were made in other countries as well? I've not been able to find any that originated in Germany or Bohemia so far. The German flasks seem to be Kuttrolf flasks which are a different shape.
I did find this though that I think I understand says they were also blown at Henrikstorps 1700's (scroll down for the shape)http://home.swipnet.se/~w-37570/glas.htm
and this onehttp://digitaltmuseum.se/things/flaska/S-UM/UM40904
which from translation seems to come from
'According Museum Gustavianums directory is the bottle from Lunddal in Skoklosters parish , Uppland.' I don't think that means it was blown there but that was where it was found or given from if I understand correctly.
The only other thing I can note is that the glass on my flask looks good and clear and the pontil mark is polished over the snapped of pontil mark - I think it's also the same on the one I linked to dated 1831.
I don't think it is late enough in the 19th for it to be Holmegaard.
I thought Gjøvik glassverk (1809-1843) Norway, which would match the time frame, the naively etched work and the shape, however I've not yet been able to find a Gjovik piece with the same or similar decoration.
Any leads would be appreciated