4 bolt pusher

[v8sharkie]

No visible markings that I can find.

DIMENSIONS:
Propeller Length: 59.75"
Hub Thickness: 3, 1/8"
Hub Diamater: 5.5"
Hub Bore: 1"
Bolt Circle: 3.25"

Inset area in the hub:
Inset Diameter: 3, 7/8"
Inset Depth: .5"