Fernet Branca is out of Milan, Italy. They make this bitters since 1845. They still exist as of 2026. It was once marketed as a cure for various ailments, and contained opiates, as did quite a lot back then. The opiates were later removed so it could be legally sold into the US market. Today it is used as a mixer for alcoholic drinks, or in some places, mixed with Coca Cola to drink, with Argentina single-handedly consuming 75% of the production in this manner, by some estimates.
Other examples below.
The replacement bottle looked like the bottle of the secont poster, of that I’m quite sure (but with a screw cork), the older was maybe looking like the one on the first poster, but I’m less sure, I had already thrown away the empy old one a while back when it dawned on us that it was a little treasure, but IIRC it was somehow in the same vein. It sure had a screw cork.
I mean if you go Fernet Branca hunting 😁