Manhattan Variometer Tuner for Breadboard Radios, Similar to Atwater Kent

Description

Manhattan Variometer for Breadboard Radios. This appears to be almost identical to an Atwater Kent variometer, using the same shiny brown bakelite. The decal in the second picture is the only marking I see. There is one extremely small chip near the front shaft that I could barely capture (see pics). Wiring is tight and variometer turns smoothly with no drag. Thanks for looking and have a great summer!