Vintage Truck Spicer Chelsea PTO - $50 (ashtabula)

Vintage Truck Spicer Chelsea PTO This PTO has been in the garage for several years.
I think it came off an early International Truck? The gear is in good condition, Length ways center of hole to center of hole across it is is 5-1/2 inches Width is about 4 inches from center of a the hole to center of hole across.
There are also 2 mounting bolts that go with it but not pictured Everything seems to move as it should.
I don't see any cracks or repairs.