I haven't been perusing my copper pile particularly close for wheats, primarily because about 90 percent of the ones I've noticed are 1950-58, and the rest typically after 1940. But I just glanced down and noticed a 1936 in my copper pile, which struck me as quite interesting because I was under the impression that pre-World War 2 wheats had a bit of tin in them which made them sort in the zinc pile. Is there something in this 1936 that may have sent it to the copper pile? Or--it sounds almost heretical to ask this--is my Coin Artist not infallible?
Depending on how you sort and what the sensitivity is set at. The pre War pennies can end up on either side depending on your settings. A good target penny helps, be it zinc or copper.
Deal
I'm so sick over pennies....I frequently trade a dime or two for the whole "take-a-penny" container if sufficient coppers exist. That will get you some odd looks.
I've been sorting with sensitivity tuned all the way left using a 1979 US Penny - all Cu both Canada and US regardless of date is accepting nicely.
Your Ryedale knows nothing about dates. It is looking for consistancy of metal content. While most of you are sorting Cu or Zinc standard, in Canada I've been sorting with Steel, Ni and CuNi standards with perfect results. I've even managed to seperate Canadian Zinc from US Zinc pennies and I figured they were the same basic composition! See my sorting for Steel thread.
The comparitor was originally designed to look for "fake" coins in a coin op device, rejecting the fakes and accepting the real ones. Imagine "cheating" a machine by feeding it steel slugs passing them off as real CuNi coins.
The issue is that SOME pre-war coins (and some from the 70's and in Canada the mid 80's) are not as consistant in metal content, and therefore you can control where they go to a point. However that inconsistancy means various coins will act inconsistantly from each other. On a given setting with the same referance coin, the same individual coins will almost always go the same way though.