PMD ... see where something hit the 2nd 4 and move metal to make a divot? The metal that was moved then wore away during circulation.
There might be a slight bit of mechanical/machine doubling on the 4s, but it's also quite worn. Could also be worn dies - everything migrates towards the rim with overuse (die wear).
-----Burton
50+ year / Life / Emeritus
ANA member (joined 12/1/1973)
Life member: Numismatics International, CONECA
Member: TNA, FtWCC, NETCC, EveryCountry (online) coin club
Owned by three cats and a wife of 40+ years (joined 1983)
Author: 3rd Edition of the Sample Slabs book,
https://www.sampleslabs.info/