These marks have already been discussed here,
viewtopic.php?p=186732&hilit=coffee#p186732
but the photos are no longer visible.
I bought a coffee pot with these marks
![Image](https://i.postimg.cc/CxQRDKwY/coffe-pot.jpg)
After several years a Polish antique dealer asked me to identify the marks on a tray with cloche bought in Italy.
The cloche was marked with the fantasy marks on the visible upper edge, while the tray was marked with legal Italian marks on the invisible lower edge.
![Image](https://i.postimg.cc/hj9vHbTP/coffe-cloche.jpg)
The silversmith's mark is most likely 374 MI, corresponding to Airoli Piero.
Hope this helps.
Amena