Zamzama
The Zamzama Gun, (also "Zam-Zammah" or "Zam-Zammeh") also known as Kim’s Gun or Bhangianwala Toap is a large bore cannon. It was cast in 1762 in Lahore, now in Pakistan but at the time part of the Durrani Empire. It is currently on display in front of the Lahore Museum in Lahore, Pakistan.
The gun is 14 feet 4 1⁄2 inches (4.382 metres) in length, with a bore at its aperture of 9 1⁄2 inches (24 centimetres). This gun, one of the largest ever made in the sub-continent, was cast at Lahore along with another gun of the same size in 1757 by Shah Nazir (a metalsmith of the former Mughal viceroy Muin-ul-Mulk), under the directions of Shah Wali Khan, who was prime minister in the reign of the Afghan King Ahmed Shah Durrani.
The Zamzama was said to have been 'made of copper and brass'. Its construction was funded by the people of Lahore who were asked to give their kitchen utensils for the gun. According to some writers, some metal was obtained through jizya, metal vessels having been taken from Hindu households in Lahore.
The gun has the date of manufacture, names of the monarch and the technician along with verses in Persian molded with floral patterns all over the barrel. The front inscription reads: "By the order of the Emperor, DuriDurran, Shah Wali Khan Wazir made the gun named Zamzama or the Taker of Strongholds." The longer inscription at the back eulogizes its bulk and invincibility: "A destroyer even of the strongholds of the heaven." Verses at the end of the inscription contain a chronogram: "From reason I enquire of the year of its manufacture; Struck with terror it replied, 'Wert thou willing to surrender thine life, I would unfold unto thee the secret.' I agreed, and it said, laden with innuendo: – 'What a cannon! 'Tis a mighty fire dispensing dragon!'"
...
Wikipedia