This is a Pennsylvania-found 133.2 of very early manufacture, has button in top of pinhole, this is not a Canadian slope-shoulder. probably Lyndeborough? Super-crude, heavy straw lines, heavy milk, beautiful glass clarity, and absolute mint condition. I've been trying to acquire a ambered mouse of the top-shelf variety, could this be the piece that gets it? Other than CD 257.....possibly something else with killer amber swirls would get it traded.