I love the before and after pictures when someone cleans up (saves) an old sign. Thanks to the advice gained from people here, I used oven cleaner to remove whitewash on the Atlantic tin sign below. I was amazed at how it took off the whitewash but left the paint below it. Added the frame after cleaning. Also used a recommendation to clean the Gulf sign with muriatic acid. Again I was very happy with how it turned out. Always starting with least aggressive methods first and on a very small spot is good. I was very careful with the chemicals and neutralized them when complete, read product instructions, personal protective equipment etc. So let's see some more before and after pics from others.