1941 Ireland Republic 1/2 Penny, Repunched 9 And 4 Or Something Else?

@jw7, I see what you are talking about on the number 4, but that steplike doubling sure looks like MD to me.

You know that is a good question and one to which I don't know the answer: is the distinctness of MD related to the size of the coin being struck? I haven't ever heard of a correlation like this, but hopefully someone here can address that for us.

The size and shape of the digits aren't affected so I don't think it's Machine Doubling. There is some notching visible and this tapering-off of the doubling as it gets closer to the rim wouldn't happen with Machine Doubling. I doubt whatever mint this was made at would hand-punch digits that large into the die, especially in the mid 20th-century, so I doubt repunched date as well.

The US Mints inadvertently made doubled dies similar to this during the same time period. A good example of this is 1942 1c DDR-005 which has incredibly wide doubling. However, this doubling is very isolated. Only the ON in ONE and the CE in CENT is affected, even letters directly adjacent to these show no signs of doubling. Example: http://www.varietyvista.com/01a%20L...2PDDR005.htm

But maybe that's not a good comparison as this coin was definitely not made at a US Mint.

I think there is a possibility your coin is a doubled die, there is precedence for this kind of strong but isolated doubling.