The image shows a display case with four different types of cannons and bullets displayed on it. The cannons are round and appear to be made of stone or a similar material. They are arranged in a row, with the largest one in the center and two smaller ones on either side. 

On the left side of the display case, there is a black cannon with a gold emblem on it, which is likely a symbol of the Vietnam War. On the right side, there are two smaller cannons, one with a red emblem and the other with a white emblem.

In the center of the image, two of the cannons are larger and round, while the other two are smaller and have a smooth surface. The cannon on the left is slightly larger than the one on the right, and the cannon in the middle is smaller and has a round shape. The background is white, and there is text on the bottom right corner that reads "Cảc loạc loài sững lập lọnh và dan cannons and bullet" which translates to "Cannon and bullets" in English.