Hemilitron, reduced. CNS I.12
(At this link a genuine sample from BnF)
This case was already discussed on the Italian forum one year ago. The comparison says it all: here we are facing with modern forgeries struck by fake transferred dies. Coin 1 (Gorny & Mosch) is the host coin, coins 2 (Fritz Rudolf Künker GmbH) and 3 (ACR Auctions) are fakes. The same obverse fake die was used to realize a forgery of CNS I.20 I will report in a future post.