As a nice surprise, the seller has a copy of the original instructions detailing the clowns, their actions, and original price!
The clown in the purple outfit is an automaton with a working wind up mechanism. When wound this clown lifts his head, arches his back, and performs acts on the parallel bars, chairs, or ladders.
The second clown, in the light blue outfit can be posed in various positions and will hold the position into which it is put.
Here is the eBay listing for Two Vintage French Cirque Int'l Clowns & Apparatus.