Bostitch P3-Ind medium duty plier stapler. Uses SP19/4 staples.
Amazon.com : Bostitch Stapler with Staples Value Pack Set, Heavy Duty Stand Up Stapler, Black, 40 Sheet Capacity with 5000 Staples, Small Stapler Size, Fits Into The Palm of Your Hand (B175-BLK -
Bostitch Office Flat Clinch Stapler 2 58 H x 1 38 W x 4 38 D Black - Office Depot