Help with .800 mark. Likely German

I posted a silver tea set a while back. It’s marked .800. Other tiny marks on each piece were too rubbed down or poorly stamped to make out. Found this mark today under some polish residue on the inside lid of one of the pieces. It seems the be the only one on the whole set. Oddly the mark itself looks like a teapot or coffee pot of some type but maybe I’m looking at it wrong. I assume the set is German. Could be Italian. Could be neither. Any help with the mark would be appreciated.
Photos may or may not have the mark upside down.

 

Here’s the original thread for reference
https://www.antiquers.com/threads/silver-tea-set-country-of-origin.47039/#post-1640113

 

Thanks!

 

That's a great mark!!!

 

Someone suggested that the barrel shape could be indicative of a Belgian mark. Maybe that is helpful to someone in helping me?...lol.

 

See the Belgium entry on this page. The "barrel form lozenge" is illustrated there along with the way the fineness mark should look in that same time frame. Your .800 mark has no shape around it that I can see and certainly mo letter A with it. Not sure what to make of that.

http://www.silvercollection.it/DICTIONARYEUHALLMARKBELGIUM.HTML