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1940-50’s British Embossed License
Plate IU 6357
Made by Homo Hygrade
• HOMO (Homo Limited) used “HYGRADE” as the brand on its aluminium vehicle registration plates in the 1920s; ads list addresses in New Southgate, London and Birmingham.
Patent No. 233,179
18” x 5”
Weighs 1 Pound
I did not clean this or take any of the dirt dust off. If you wanna clean it, that’s up to you. I don’t even make my bed at home.
You’re looking at a British patent for early car number plates.
• “HOMO HYGRADE – Patent No. 233,179” refers to UK patent 233,179 (UK233179), filed in 1924 by David Albert Victor Rist of Lowestoft. It covers an improved method for manufacturing embossed/intaglio metal name & number plates with sharp, vertical-sided characters by pressing metal between matched dies. 

If you’ve got a plate stamped “HOMO LTD PATENT No 233179,” it’s a period British number plate (or maker’s corner stamp) produced using that patented process.
