Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums Showcase and Stories, Petroliana Company of the month "Sinclair"

Sinclair had two main types or grades of oil, Opaline and Pennsylvania. There are cans and signs in several different sizes and designs. The two signs at the bottom of the picture are 16 inch. They also had 12, 24 and 30









A safety sign. The number of accident free days could be put in the slots