An entry by Master Brian, in the category of “Is this a dagger I see before me?” He provides this video and accompanying explanation:
https://www.blogger.com/video.g?token=AD6v5dwFEj7Dpysaud7CX-y1751xpv6GmTozC51yLK0VozDPjaMxZ5BcWcOcThkktTICED6vS0pA8mmZ521NOYQRAqLhHONd3XEaXIjLHcFbSJFzWmlMDZK_sBsuOxjOlqTJSiCzEOtn
“This is a Chinese repeater crossbow. Due to the relatively low poundance of the crossbows they were not so effective against armoured opponents. However, with poison tipped bolts it was suited to home defence by the lady of the house, or to deter brigands from a merchant caravan.
Trading in the Mongol controlled port of Caffa, oriental items like this would show up, and were good to keep on hand when relations with the mongols went sour.”