Someone out there collects these wrenches??? This one is marked as 1/4 c.s. x 3/16 nut w/#2 on center of beam--reverse side has a sq. window Dasco Z-23 sq. window on beam with both ends wedge/tapered I would imagine for tight areas. Think I have only found one other s/o in my travels-several years back. Looking for a ratchet trade or?????--Thanks for looking....Cranky :cool: :grin: :smiley: :wink: