Seems like a weird sentence

The passage below is from a novel called “The Egg.”
The story is amusing though cynical, which I like a lot.
Anyhow, let me describe this sentence in question first.

This sentence starts with two AVS structure.
(A : adverbial/ V : verb/ S : subject)
So when the last part starts with adverbial I naturally expected the same structure will repeat. But it doesn’t. In the red-underlined part I can only see adverbial and its post-modifier. Can you tell me what happened in this?

Out of its sides (A) stuck (V) the legs of cheap chairs (S) and at the back of the pile of beds, tables, and boxes filled with kitchen utensils (A) was (V) a crate of live chickens (S), and on top of that the baby carriage in which I had been wheeled about in my infancy.

http://www.eldritchpress.org/tales/egg.html
We must have been a sad looking lot, not, I fancy, unlike refugees fleeing from a battlefield... The wagon that contained our goods had been borrowed for the day from Mr. Albert Griggs, a neighbor. Out of its sides stuck the legs of cheap chairs and at the back of the pile of beds, tables, and boxes filled with kitchen utensils was a crate of live chickens, and on top of that the baby carriage in which I had been wheeled about in my infancy.