For your consideration, here is a Vintage Rodale Genuine Bakelite Electric Push Button, No. 301, Square Style, with Box.  It has some wear on it.  I have not tested it.  It looks to be in good shape.  The base measures 1 3/4 inches square.  The box is very worn and missing the flaps on one end.  I don't have the mounting screws for it.  It will be mailed in a box for protection.  Item pictured is the actual item up for sale and comes from a non-smoking household.  (467.27f-.5bx2)