No Mike i probably havent explained very wel.
If anyone looks at a hundred pictures of 1944 pennies only a few will look like they have no mint toning.Should you buy the few one may be ok ,one maybe cleaned and one just worn.
So maybe only one has been cleaned out of the hundred .
Petrol was just an example it could be a brilo pad or anything else that has took the surface dye off.
Anyway as i said glad you got them and you did really well to find them ,sometimes we can only find out by having the coin in hand.