[6pack] What is this (are these)?

[Richard Lindsay]

Not a difficult starter but:

What are these? (Spanner for scale.)

On Tue, Apr 28, 2020, 1:06 PM Greg Lemon via 6pack <6pack at autox.team.net>
wrote:

>
> "There's an idea to pass the time.  Post pictures and let folks guess on
>> what it is."
>>
>
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