That’s from the back of the factory speedometer p/n 1205239 which is superseded by p/n 1324798 as the replacement speedo in the field (parts chain)
https://www.volvopartswebstore.com/products/Volvo/Speedometer/1205239/1324798.html
Replacement speedometers sometimes have a distinguishing feature, like a red background for the rightmost digit, to indicate they don’t show the actual vehicle mileage.
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Dave -still with 940's, prev 740/240/140/120 You'd think I'd have learned by now

My guess is it's the tachometer.

15 or more years ago I bought an instrument cluster that was (supposedly) from a 264/265. It bears a similar sticker on top of the pod, and you can probably guess why I think yours is from the tach.

Hi,

I can only say that the bottom number is the date of manufacture or date that the unit was assembled before the cars assembly time.
This, of which I would assume, was a contract number or a purchase order number from various vendors used.
It also can be some “in-house” inventory number for their recognition.
These clusters come with variations of a clock and a tachometer on the left side let alone the craziness with the ways to use different light bulbs for different markets around the world.


Phil



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