Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums General Petroliana Discussion What time period was this Ethyl sign used?

I have just cleaned 2 Bennett 76 pannels using electrolisis. There were so many coats of paint I didn't even see the 3" pocelain ETHYl sign on the bottom of the first pannel. Caught it when I was checking the brew. They cleaned up as good as new. I hope reuse both on this pump About what time period were these used? URL=http://img222.imageshack.us/my.php?image=ethtlsign4re.jpg] [/URL]

Thanks Greg