I had to swing by the bank and so I grabbed all the customer-rolled pennies that the teller had in her drawer...plus a couple rolls of quarters. I think it will be more fun and maybe even more productive to search these rolls now than when I first started because I will more readily be able to distinguish PMD, die cracks, cuds and such. The main difficulty I notice I have is being able to see/recognize die clashes. When CoinTalkers post them, I really have to take my time and look before I can see what is being described. It might be some problem of communication between my eyes and my brain. I'll post what I find, but I already see the reverse of a wheat cent and an 'older' quarter showing it's reverse.
If not you should visit www.maddieclashes.com. It's a go to for me like Wexler's site is for doubled dies. You will find though, that die clashes are not extensively cataloged like doubled dies. There are just way to many possible. So, they are broken down into catagories like "Typical", "A Typical", counter clash, etc. Best way to tell when you see an anomaly is to have a series of overlays of the various coin styles you can refer to. At the site I mentioned above, there are photos of some of the more major clashes.
Clashes can be difficult. Some are easy and others are tough. The easiest way is to remember a clash is the reverse side of the coin. If your searching Cents put one face side up with Lincoln looking at you. Put another next to it with reverse facing upwards but to orient it correctly the Memorial will be upside down. If you see what looks like a clash look at those 2 coins. It should make identifying easier to spot. Best wishes and post your findings.
Great idea @Collecting Nut !! Similar to what I have to do when distinguishing between wide/close AMs. I always need to keep repeating out loud what the rule is or what exception I am looking for. When I get under the hairdryer in a little while, I'll take a quick first look at these I got today.
I went through 2 rolls of pennies and one roll of quarters and did not find anything of interest except a 1950S wheat cent and another penny 1990, I think, that looks so shiny and bright - sort of like a mirror. I thought it might be a proof coin. I'll include that one when I post after reviewing all the rolls.
I believe there was a mint error on 1990 penny proof missing the S. Not 100% sure though. GL searching.