I bought this sign from Jackie Knott at Iowa Gas in 2007.
It had a blank panel at the top without porcelain. I was told this was a "privlidge panel" that could be painted in with the dealers name. I saw a second sign like it at the show also but it was in worse shape. I have never seen one like this before that had the dealers name painted in the blank spot. They normally look like this;
I took mine to the sign shop about a year and a half ago and asked them to paint dads name on it as he was a Sinclair dealer back in the day. This is the after shot;
I think it came out pretty good. The font on the lettering is a little off but I am happy with the job they did on it. Dad likes it too!