Well for anyone else interested in the clocks they are made by Lackner. Number on the back indicates June of 1956. Both work when plugged in (and buzz), however the neon does not light up. After some research I think the transformer may be bad. From what I was told by her dad, both of these came out of their dealership (original). I am hesitant to remove the glass as the printing can be easily damaged and rub off. Should I enjoy as is or try and open one up to see if it's easily repairable?