The pulley is a Crosby. Not sure what the other items are.I acquired this equipment at a local estate sale, so I do not know the history of these items. OUR HAVE TWO BOXES HAS WEIGHT. 38LB AND SIZES 23-17-13 AND SEPARATE. SECEND BOX WEIGHT 37LB 6 OZ SIZES 23-17-13. GOOD LUCK BIDINING HAPPY WIN! The item "Pole tree climbing tools" is in sale since Tuesday, November 07, 2017. This item is in the category "Business & Industrial\Fuel & Energy\Power & Utilities\Climbing Spikes & Gaffs". The seller is "jamesstore" and is located in Randolph, Massachusetts. This item can be shipped worldwide.