It took about two full days to get the Happy Cooker cleaned up...and I gave up after 90% of the burnt on carbon was removed from the bowl and lid. Used a razor blade, sandpaper, steel wool, putty knife, and oven cleaner. My hands / thumbs got worn out! That 1979 enamel is nearly indestructible! It did not scratch from my cleaning efforts.
There was a metal ring that inserted into the bowl, and then would hold the lid up in a vertical resting position. I wonder if the metal lid holder from a new Weber would fit?
My weekly go-to grill is the Happy Cooker. The Jumbo Joe and the other Weber Kettle are still new.