Mechanical Television
The Mercier Laboratory
Murry Mercier Sr. (left) and Jr. tune in an image on their 24/48 line receiver. At the bottom is the disk and motor from their 60 line set.
At the center the 45 line set is visible. To the right is the receiver in our collection. On the wall at the left may be the other disk for the 24/48 line set.
In this picture, Murry Mercier Jr. is measuring the hole locations on the disk for the 60 line set