Weighing pennies will never result in a correct count. Since there will invariably be pennies from 1982 and newer mixed in with pennies from 1892 and older. Pennies went from a copper alloy (95% copper and 5% tin I think) to copper plated zinc in mid 1982. The pennies have different weights. That is how I separate the copper from the zinc 1982 pennies. I use a powder scale, and weigh them. Copper pennies were heavier. Older coins having more wear will weigh measurably less than newer less worn coins. This difference in weight can add up. Maybe not in a couple of rolls, but in large quantities, it can make a significant difference. Counting by weight is pure LAZINESS!!!
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Today's Featured Article - The Nuts and Bolts of Fasteners - Part 2 - by Curtis Von Fange. In our previous article we discussed capscrews, bolts, and nuts along with their relative hardness and thread sizes. In this segment we will finish up on our fasteners and then work with ways to keep them from loosening up in the field. Capscrews, bolts and nuts are not the only means of holding two parts together. When dealing with thinner metals like sheet tin, a long bolt and
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