Lenses and some sketches

So here is the product of my evening, two lenses dismantled in pursuit of the innards! I love the puzzle of getting into these things, SO well made, each time I think I've beaten them another layer defeats me. But with a bit of improvisation I got the iris out undamaged (it had been OILED by someone in the past though!! Just shows I only pull apart the duff ones) and then those beautiful big lenses came next.