1983 Copper Lincoln Memorial Cent

an excellent pocket sized scale is available from https://www.brent-kruger.com for less than fifty bucks. It's digital, weighs in grams. ounces, pennyweight, and troy ounces and is so sensitive in fact, that you can weigh a shotgun roll of mixed Lincoln cents and determine how many "coppers" are in the roll without even opening it! I've been using one for a year now and am extremely happy with it. Worth looking into if you're a serious collector.

As I have posted before you can tell the difference between copper and copper/zinc with a metal detector. It works 100% of the time. It gives a difference in tone. I also have a scale that goes two digits after the decimal, 100's. It's really quick to pass one a at a time under the coil. Pile for clad and a pile for copper. What I have checked this way runs 2/3's clad and 1/3 copper. You don't need a scale if your metal detector can differentiate. If you don't have that option you need a scale.