I have been very fortunate to find several 24" porcelain enamel Coke button signs on heavy steel.

24" Coca Cola Porcelain Enamel Coke Advertising Button Sign

Approx. 24" wide. 

Porcelain enamel paint on heavy steel. Weighs just over 10 pounds.

There are some very light scuffs on the paint and some chips to the paint along the edges, mainly near the mounting holes.

It is very difficult to find these heavy steel signs in this condition.