I am trying to research and value a completely restored Graybar no 50 Sunshine Lamp. Every piece on the machine works as it should. Two appraisers had no idea of it,s worth. It has the original model, serial number and maker on a plate in back “patent applied for. Any help would be appreciated. It is in old magazines from
the late 1930,s and later to the 1940,s. It sold then for $135 back then.

Thank you