VINTAGE 1940 ADVERTISING SSP CLAMSHELL PORCELAIN SIGN SHELL OIL GASOLINE w/ NEON On Ebay

https://www.ebay.com/itm/VINTAGE-19...N-SHELL-OIL-GASOLINE-w-NEON/362630980285

Located in United States

Saw that and wondered why it is so dull looking.

I wondered the same thing....the condition is well above average, so the dullness of the porcelain is surprising.
Darin

Looks Like Plastic.


Sid

mine has a sign company & date on lower right .. ...

I do not know, but when someone is posting from Egypt it causes me to look closely. I was expecting to chime in and let us know why this is so.