7 x 7″ (17.8 x 17.8 cm) Stillman & Birn Beta sketchbook.
Faber-Castell F-point ink pen, Pentel Brush-tip pen, aquarelle colored pencils.
I’m fascinated by complex industrial contraptions like this one. It sprouts out of a building across the street from my studio parking lot. Looking like a Rube Goldberg device, it has something to do with setting off sprinklers in case of fire.