I went to an auction of the contents of a closed up service station in Corsica, South Dakota, last week, and I was able to buy the Champlin cans and the Polarine sign! I have been wanting that Polarine sign for a long time, but I've only had the chance to buy it twice, and this time I didn't miss! LOL
The Cities Service plate is an 8 incher and came from ebay. I have never seen an 8 incher before and I'm not sure what they were used on? Does anyone know? I'm positive about the authenticity, just haven't ever seen one? Must be a rare bird!