I tend to accumulate stuff, I bid on the mercer dial test indicator and have to take the 5 boxes of assorted tools that come with it. On this theme cold anyone recognise what the following items are or what they are from.

Looks like some sort of leadscrew. Can anyone recognise what it might be from?

This little screw thing.

Another leadscrew


What appears to be a partially finished saddle to a lathe. Vee way would fit a myford if you have it a larger than usual gib. There is also an oversized gib with it which might be a standard to machine V ways at or something similar.
Now all those parts were from the same lot. The individual parts look incredibly generic and I doubt anyone would ever recognise them but my hope is someone out there might have a kit or machine that all these parts came from.

On a seperate lot I got this big batch of what look like some sort of plumbing all bunged in a paint can. Caked in grease. Apart from if anyone knows what they are does anyone know a good way to dissolve all the grease off of them so I can get a better look? (small question not worth its own thread)