1Stdibs Industrial Easel

https://www.1stdibs.com/furniture/more-furniture-collectibles/racks-stands/easels/industrial-easel/id-f_1077120/ 

About
A heavy duty patinated steel industrial easel on casters having a cranking adjustment and exposed mechanisms.
This easel can easily handle a heavy sculpture or a flat screen television.
Crank adjusts height of easel lip from 4.5 to 53.5

Dimensions:
Height: 71 in (180.34 cm) Width: 24 in (60.96 cm) Depth: 23.5 in (59.69 cm)
Style:
Industrial (Of the Period)
Materials and Techniques:
Steel