Black biro on lined notepaper (you can see the punched holes at the bottom of the picture). Drawn as a doodle that got out of hand and got me a ticking off as I drew it at work! Entirely freehand, no compasses or rulers, and I made it up as I went along.
One of my favourite pieces of my own work. It seems that biro is an excellent medium to sketch in.
I know ‘pre-cog’ means something else, but as I drew this before my first ‘serious’ piece on cogs, I think it suits! I wasn’t sure about sharing it, but I’d like to know what people think.