I dare ask if you missed another part of the text, when you compare it with the Mary Rose example

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The one i am posting is more than 3 times longer, 32 times heavier and has an almost 10 times wider mouth
I know many museum internal staff are not keen to describe what they keep but, in this case, the person that catalogues this example is supposed to be well informed; ex-member of the Portuguese Academy of History, ex-Director of the Army Library, ex-Director of the São Jorge (Aljubarrota) military field and museum of Aljubarrota, actively involved in the terrain research and author of various works on naval investigation, he attributes the age of this device to the primordium of pirobalistic artillery.
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