No. 4 Kodak Junior (1889)
The No. 4 Kodak Junior took 4 x 5 inch (10 x 13 cm) photos on darkroom loading rollfilm or glass plates. To switch between the two, the photographer had to exchange the back. The camera in the video has its rollfilm back attached.
Quite special in this particular specimen is the dark slide. I have not seen such a dark slide before in other No. 4 Kodak Juniors. It is handy, as the photographer could take off the back in daylight without loosing a picture.
The camera was expensive, costing $ 50.
It also was easy to operate, although one should not forget to set the distance with a wheel on top of the box.
High price and ease of operation put it in my category of expensive snapshooter cameras (see the users & cameras page about this).
The No. 4 Kodak was made from december 1889 until 1897, during which period 4200 were produced. This is not so much and today it is not often seen.
Illustration from Buchanan's complete illustrated catalogue, 1893. When the No. 4 Kodak Junior was sold without the roll-holder, it was named No. 4 Junior Glass Plate Kodak and it sold for $ 40. (The illustrated camera is a No. 4 Kodak, not a No. 4 Kodak Junior.)