I picked up my first $25 box of pennies. @ of the rolls inside were marked with a red marker. Who was marking there rolls this way?
Both of these were mostly zinc pennies inside but the copper that was there was older. one had 7 coppers ranging from 1940-57. While the other had 11 coppers with 2 wheats 1-1939 & 1-1958D. The others were kings & young queens again.
The zincs rolls that I return have a black Z on them. The nickel rolls that go back have an black N for new on them. I will be dumping both today as both are just across the street from each other.
It does not sound like a coin roll hunter marked those rolls because they had goodies in them.
Personally I mark all sorted rolls with a (often green) S for Sorted Steel Sh... This saves me trying to remember if those bricks of coin at the door have been sorted or not. I have gotten some of my rolls back a couple times when buying coin which just means I dump them again quick. I buy and dump somewhat randomly as I happen to be here or there on other business. I try not to buy where I have dumped, but I will occasionally switch things up and that can lead to long stored stashes of my sorted rolls resurfacing.
I also once got a 1/2 box of coin marked by another sorter = they put the end of the roll into an ink pad. Pretty effective actually, as you can mark whole blocks fast that way.
“The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.” – George Bernard Shaw. Why Copper Bullion ~~~ Interview with Silver Bullion Producer Market Harmony Passive Income blog
I know some banks in the U.S. write the name and number of whoever brought in the coins (in case they are shorted, I'm told). Once they are ready to hand them back out, they cross the names out with a black or a red marker. Also bank personnel might put marks on the rolls as they count them to keep track.
I've bought partial boxes of Halves that board Tellers have colored with Magic Markers. (At least that's what they told me when I asked why the rolls were marked so fancifuly.) They had Ag in (some of) them.