Stoped by the local scrap yard today.They had two 50 lb pigs and a bucket with some old pipe.The pigs are the interesting part.They are stamped PB/SN and a numberone marked 4836 the other 48361.They both have daek green and black paint on the ends.No other marking is on them.70 cents a lb is what I payed.If all else fails I guess ill send it to be tested.Sure made my day.
Bob