Here a 10½" x 18" enamel sign spotted at Newark UK antiques fair on 18 November 2019 - unusual as it is single sided and without ICI logo.
A very nice sign. Thanks for showing.
I hope you bought it?!
The missing ICI roundel just gives me goose bumps!!!
oh yes …
Yes, I have handled these - obviously a modern repro.
I think he leaves off the Logo for fear of copyright problems.