Certainly it not a match of my coin but similar enough in
style that I suspect the two were related in manufacture. Mine is
fourree and quite thickly
plated compared to most
fourrees. I would not suggest cutting the coin in half but, without that, I would not rule out plating as a possibility either. The question of importance is whether it was made in the first century or the 20th. I suspect the first but can prove nothing.
There are many unofficial coins that are decent silver and a few that are even better than the real thing. The official
mint operated at a profit so it would be possible to make copies without losing. We just don't know what the reasoning was behind every oddball coin we see. Most were probably just
counterfeits made to deceive but there is nothing to rule out the occasional local official who put out coins to meet a need with or without permission from the emperor. An example of this might be found in the
Aureolus issues of
Postumus that get cataloged as fully official. I have several clearly unofficial
denarii from several different reigns (no
Domitian) that are at least as
good metal as the real thing (just different in
style).
If you need evidence that this coin is unofficial and don't believe in reading the
style, I'd suggest that it is unusual for both sides to carry a TRP date. My coin has
IMP on the
reverse as it should. I agree the
obverse numeral should be higher than IIII but could also read the remnant here as
VII which makes it quite reasonable.
If you bought the coin from
Warren Esty, you should have asked him for a full explanation on what he believed the status of the coin to be when you bought it. I would value
his opinion on the matter of an unofficial coin considerably above mine or most of the others who post here. You might find
his page interesting if for no other reason than it illustrates your coin:
http://esty.ancients.info/imit/imit1stC.html