Only known depiction of #Mysorerockets in action. Courtesy Dutch national archives and fascinating research work by Nidhin Olikara in digging it up.
14 January 1790, "Letter from J. G. van Angelbeek, Governor of Ceylon, from Cochin, to Mr. Decker, reporting on the battle between Tipoe and the prince of Travancone."
https://www.nationaalarchief.nl/en/research/archive/1.11.01.01/inventory?inventarisnr=1276




