Abstract?

I suppose this may look quite abstract to someone not knowing what it is, so I dare tag this Abstract Thursday.

Actually it's the internals of the rake gearcase after finally getting everything (almost) dismantled. The cranks and rods can now be easily removed, so I don't count that, and it's easier to store the whole thing with them in place. The last obstacle was the large thing that turns the cranks, as it was quite difficult to get to the bolt that needs to be loosened to get the cranks out of the groove that turns them, but got there finally.