Browning 60HQ200 Gear Belt Pulley.  0.5000 inch pitch, 60 teeth, 9.495 inch OD, 2.00" belt width.  Tapered 2.75 to 2.86" bore.  1/2" keyway.  New surplus, old stock.  These pulleys have a little light surface rust in places and the boxes are in poor condition.

Location - SU