Various images of Chongtong and Chongtongjeon
  
      164. Powder flask Late Chosun

left length : 21.4 width : 11 Material : wood
right length : 22.3 width : 13.7 Material : wood
Courtesy : Military Museum(Donated by: Lee, Ki-Baek, right)
Filled with black gunpowder for various Chongtong(cannons)