@twyngwyn wrote:
some sort of scroll holder?
Made me think of scroll ends.
But I think this is more specifically for some industry.
I am thinking possibly for weaving, knitting type mechanism.
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Davids suggestion of a thermometor holder sounds reasonable. The rings could be padding for the glass bulb and the screw on ends could hold the dangerous mercury if the item breaks in transit. I used to work in a science laboratory many years ago and we used similar items there.
It could even be for a medical thermometer, hence the shiny, sterile metal.
Spoiler
And you know where they insert them dont you ?.....
