Lookinf for an old neon sign box that takes interchangable letters. See photos.

[George Albright]

Dear Friends: I am look for an old neon sign box that allows plug in neon letters,to be interchangable with your message. They were made by the Insco Products Co. of Piqua Ohio under the trade name "Lit Writer" Leads appreciated. Letters not important just a working or made to work sign box/transformer. Thanks,George albright,Ocala,Fla. cell 352 843 1624 from 10 AM to 4 PM EST. Email gnalbright@gmail.com