A cannon from Venice and Florence, Italy. Now in the Wallace Collection, Manchester Square, London.
Date:
1688 and 1853-44 (cannon barrel)
1853 - 1854 (gun-carriage)
https://wallacelive.wallacecollection.org:443/eMP/eMuseumPlus?service=ExternalInterface&module=collection&objectId=61807&viewType=detailView
Photos taken December 2018 with a Sony a6000 and processed in Reality Capture.