Sean McLachlan, who wrote a previous post on his research on the accuracy of medieval firearms. Today he's talking about some interesting items he found in the Pitt-Rivers Museum in Oxford.
The Pitt-Rivers is my favorite museum. It is literally stuffed with items from every culture in the world and every period in history, organized not by time and place but by use. In the photo above you can see an early attempt at a "revolver", a four-barreled handgonne! As I mentioned in my previous guest post on medieval firearms, a handgonne was the earliest form of black powder gun, being lit by a burning cord called a slow match instead of any sort of trigger mechanism. They appeared in the 14th century.
In the above shot you can see another view of the four-barreled handgonne; a large handgonne just below it still being used in Burma in the 19th century; a leather cannon from Manipur, India, below that; and than a typical "hackbut" type of handgonne below that. The hackbut was especially popular in the Low Countries and came with a hook for bracing against a wall, mantlet, or other object. The other objects are later.
history of the Byzantine Empire! Other grenades survive from the Middle Ages too, and contained gunpowder.