Posting from my desktop PC, as always.
2665, no clue
2666, might be something for wool carding and sorting?
2667, looks like some kind of roller for flatting things, in a machine?
2668, I'm sure we saw something like this before. But, I can't remember its
2669, totally no clue.
2670, the square hole might be for turning on and off pressurized gas tanks
(oxygen, acetylene, etc.) But what is the square blade?
Christopher A. Young
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I need some help with the second and fourth items this week: