On 25 Jan, 09:15, "R.H." wrote:
This week's set has just been posted:

#885 Smoothing tools, either for decorative plasterwork or for
sand-casting in a foundry. If there are that many, I'd guess
plastering.

#887 Flechette - air dropped anti-personnel dart, probably WW1

#889 Parallax viewer for measuring aerial photographs.