25mm

flickr

Leipzig by Jörg Schubert

flickr

Leipzig by Jörg Schubert

3

Rampart Gun

Manufactured for the British East India Company c.1820.
.98/25mm smoothbore barrel, flintlock, swivel mount.

This kind of firearms were used mounted on walls or gunwales, riding the fine line between light artillery and heavy infantry gun.

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木蓮 by Neconote
Via Flickr:
magnolia