@gutenberg_org According to the description there are two projectiles: a "roket-like" one "At the center of the image" "blasting upward from the ground" and one "At the very top of the beam" "emphasizing the ascent into the sky or possibly space".

In fact, there is one projectile in the image; it is being fired vertically upward from a cannon on or in the ground. Most of the people in the picture seem to be running or crawling away from the muzzle flash.