These German, Italian, and Austrian pistols are from the 17th century. They are exhibited in Vienna:
This holster is from the Eszterházy treasures, from the mid-17th century. It was made in Transylvania; now it is in the Museum of Applied Arts in Budapest.
Antique 17th -18th Century Hungarian Gun Powder Flask Horn Transylvanian
Antique 17th- to early 18th-century Hungarian powder flask. A staghorn body of characteristic Hungarian forked type, the outer side engraved with a series of repeating panels in Hungarian folk style, centering on an arrangement of sun symbols, fitted with a nozzle and two horn rings for suspension.
Most of these types of flasks were made during the 17th -18th century in the Hungarian-dominant Transylvania, now Romania, but also in Veszprém County.
(Source: https://www.antiques.com/classified/ )