Two vintage Mitchell wireless 2-way intercom units for sale. Not sure the model number but very similar to the listing I found in several old catalogs (see last pictures). The 2nd catalog page is from a 1956 catalog, the other about same time period. These are tube based units so I did not test them. The cabinets are in excellent condition. I don’t see any cracks, major scratches and only one small chip (bottom edge, right side near foot of one unit). But they could use a good cleaning and polishing. I believe they are plastic. Very cool units from the mid 1950’s.