[time-nuts] Looking for a HP-58503 display

[Gregory Beat]

The Chinese source may be in better than condition of your current part.
auto*fan (Shenzhen) and Misesnbo2008 (Beijing) are two eBay resellers (among others).

Regarding the HP 3458A multi-meter ... 
here is a 2015 Lazarus story at xdevs & covered by element14.
Reviving the HP 3458A from the dead ... 1/2 of repair cost for Aligent transformer
https://xdevs.com/fix/hp3458a/

greg, w9gb
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Date: Mon, 17 Jun 2019 16:53:02 +0000
From: Mark Sims <holrum at hotmail.com>
To: "time-nuts at lists.febo.com"
Subject: [time-nuts] Looking for a HP-58503 display

Nope, I never found a replacement display... still looking.   I think the displays showing up on eBay for various HP equipment are Chinese clones.   They even have displays for the 3458A multimenters.