Royal Standard was a trademark not the pottery works, this trademark was used by Chapmans Longton Ltd. This company was among the famous Staffordshire pottery companies, and based at Albert Works, Longton, Stoke-on-Trent.
The tradename Royal Standard was in use from 1930 onwards, previous to this it wss called Standard China

DLAT Rating: 5/10 (Darling Look At This!)

ROYAL STANDARD (Chapmans Longton Ltd) – Side Plate ONLY
Design: Art Deco
***This could be pattern 9488, as the cups have this hand written on each cup OR this could be the artists marks although the factory artist usually used ‘marks’ not 4 numbers.
Graphics are three collections of flowers around the outside of the side plate. These look to be ‘fantasy flowers’ not depicting a particular species. Colours are very bright and vibrant.
White bone china base
Very translucent (you can easily see your fingers through the china when held to a light)
Circa 1930 ~ 1949 (based on the backstamp design)
Hand painted – run your finger across the orange/red painting and it is raised from the plate surface.
Gold gilding applied to the rim.
Square not round shaped
Dimensions: 160mm diameter
Medium weight: 200g

BACKSTAMP DETAILS:
All graphics & text are printed in Silver/Grey
(Crown graphic)
ROYAL
STANDARD
BONE CHINA
ENGLAND

Works artist marks are clearly visible underneath – these were extremely important to the worker because they were paid per piece completed, not by the hour.
CONDITION:
NO chips
NO cracks
NO crazing
NO wear noticed to the gold gilding
NO damage to the artwork
SPECIFIC SIDE PLATE INFORMATION:
I have done my best to give an accurate description, looking at the china and glaze with a magnifying glass where possible. This side plate is very fine and even a ‘stray hair’ sometimes fooled me into thinking it was a crack – of course it wasn’t.
A yellow(ish) discolouration can be seen. It seems to be on top of the glaze. I tried cleaning this and it improved but I could not easily remove it. I do not believe this to be smoke stains, something has affected the glaze – it is a little like the terrible staining you get when you cut a Tumeric root, yellow everywhere! This discolouration is on two sides and is pale but you can notice it. Underneath there are no marks or fleabites at all.