Another wasp nest

I found this wasp nest on the ground this morning. The branch supporting the nest must have broken off, maybe because some monkey was trying to get to it. I don't know. Just speculating. I forgot to include some reference point for seize. Compared to the bell wasp I showed a few days ago, it's quite small. It may be 5-6 inches in length. Somebody asked if those black spots were painted on by some touring artist. No, they were created by the wasps for whatever reason. It could be a variation in building material.