[ARC5] Tuning Knob

[Brian Clarke]

No chemist / physicist would put brass and aluminium together; hence, not a
production item.
So, probably after market, home made. Possibly a once-off.
73 de Brian, VK2GCE

-----Original Message-----
From: arc5-bounces at mailman.qth.net [mailto:arc5-bounces at mailman.qth.net] On
Behalf Of Adam Castellani via ARC5
Sent: Monday, 1 November 2021 10:24 AM
To: arc5 at mailman.qth.net
Subject: [ARC5] Tuning Knob

Good evening. Cannot seem to find much background on this unmarked tuning
knob:

https://i.imgur.com/QVVtDVv.png

Curious when these were made and by whom? 

Thank you kindly for any detail and regards.
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