A little more on Richard Colin (though unfortunately the writer's appeal for further information seems to have gone unanswered):...
It seems pretty likely that the artist is the German born Richard Colin (1885-1971). Not much about him online, though he seems to have had a long...
Possibly Mátyás Sárközi; not really known as a visual artist, but trained as a book illustrator. MÁTYÁS SÁRKÖZI (Budapest, 1937), writer,...
A lot of sites give his first name as "Henryk".
Edouard le Saout, I think, though the signature seems to vary considerably. https://www.dorotheum.com/en/l/1829000/
Mezzotint by "S. Arlent Edwards" i.e Samuel Arlent Edwards, 1862-1938. British-born; in the Unied States, on and off, from 1890....
A bit about Stogdon, to muddy the waters even further here: https://www.grayspottery.co.uk/paintress-designers.htm In short; the names J and A...
A quick look at familysearch doesn't find many likely candidates - for 1924 the only likely candidates seem to be Henry Seffrien Alken (b.1865), a...
Despite the ridiculously Mediterranean colours (not unusual in Deco versions of Britain), I think from the situation and the eight arches, that...
"E Petit" was not an "Encadreur", but an "Emballeur": i.e. packer. He is recorded at 6 Rue Lamartine between 1876 and 1894, though he may also...
"P. Chan"
Actually, I think "Zbornik" and "Orcas": presumably for Kristen Zbornik of the Orcas Island Pottery (though it seems she sometimes signed...
I've been trying to make this read "Edwin Boddington". His signature seems to have varied a great deal, and this would be fairly typical of his...
He was listed in a book called "Designers in Britain" in 1951, so he did probably have some kind of professional training:...
See here for the various Chinese export seals: http://gotheborg.com/marks/jianding.shtml
Lauder Barum (ie Barnstaple, Devon)
Candy sometimes marked their wares with the tradename "WESCONTREE". A play on "West Country" (do I actually need to explain that) as they were...
Isn't this printed in outline and then painted over rather roughly with the solid colour? Which would mean new. Look how crudely and with how...
Search for "G Roth" and "stillleben" and you'll find several similar.
But he spelt his name with one "n". It's more likely it's by the Steven D Rubelmann who wrote The Encyclopedia of the Airbrush (1982). And that...
Separate names with a comma.