I've been a little poor with the 'before' photos, I'm sorry.
Things like the traverse handwheel, above. Remember this piece, because it will very soon be mated with it's correct mechanism, thanks to parcel received from Rob N during past week.
The silver measuring scale in second photo is another item from Rob. Like the handwheel, I started the cleaning process without thought to taking a before shot. I took to this with a fine sandpaper (wet & dry paper), and did so under running water in the shower. Mrs B was not greatly impressed.....again. She said I hope you didn't get dirt and grease all over the shower. To which I replied, that's not dirt, it's history. Later in the evening I got a bollocking, because, and I quote "You've got history all over the shower floor!"
The above piece, being the part that joins range scale cone and sliding pointer assembly in photo 2, didn't require much cleaning. It's comprised of two parts. The outer, main piece, bolts to the body of the sliding scale. The second part fits to the apex of the cone, and is slightly thicker/deeper than the bushed hole of the first part. This being the case, the cone is still able to rotate when tightened.
The preceding 2 photos are an original package of 8 RH wheel nuts, which came courtesy of Keith Webb, still covered (perhaps Encased is a better word) in decades old tropical proofing. Will be a shame to open the pack, but I can't get them on a hub how they are.
All going well, today I should get a few more small bits ready for paint.
Will be mindful of photographing the 'before' states.