Saltcellar 1801, Austrian Galizien (Brzezany?)

[dolpheus]

Dear friends,
in my collection, i have this nice small bowl (saltcellar). I buy it as alpaca, but it is clearly 13-loth silver from year 1801. It was re-hallmarked (1806) in Lwov (Lemberg) - mark half-moon + D. (mark is somewhat damaged - possibly damaged punch - it seem to be typical for Lemberg´s repunzieruingsstempel).
I thingh, 13-loth hallmark can be Berezany (Brzezany) in Galizien (Galicia) - Austrian country. J.Divis show this hallmark type (127) and letter "O" for Berezany (SU). Also D.Stehlikova:Encyklopedie českého zlatnictví, stříbrnictví a klenotnictví(images below) write, letter "O" in years 1787-1806 mean Brzezany.
My question is, whats your opinion, it are Brzezany, or something else? Has somebody just seen this hallmark with letter "O"?
And, if somebody is able to identify maker (maker mark BWG), i will be very thankful.
Many thanks,
sincerely yours
M.

[eser74]

This cellar is from Brzeżany (assay district). This mark comes from 1787-1810 (by M. Gradowski - "Marks on silver in Poland").
Maker's mark BWG... This maker comes from Brzeżany or Bursztyn or Bóbrka because letter B can mean one of those three villages (all belonged to the same assay district in Brzeżany) . Letters W and G are surname and name of this maker. Unfortunately unknown yet...
Yours faithfully

[dragonflywink]

Just popping in for a very quick comment - those are just the most elegant little ball-and-claw feet on your salt, gorgeous, really!

~Cheryl