Primo hub question

[Gary72]

I've got some Primo pro hubs and there is a number etched under the star on each one. All mine are different.
Is it some kind of date code? Although one of the rears has the same number on the axle if you remove it.
Any ideas

[Devilock]

I've got some Primo pro hubs and there is a number etched under the star on each one. All mine are different.
Is it some kind of date code? Although one of the rears has the same number on the axle if you remove it.
Any ideas

It denotes the amount of time you have left to live in seconds.

I presume it's the batch number...

[Gary72]

Well I didn't die after 212 seconds. But thought I'd 
Getting some wheels built and I have NOS 48h large flange Primo Pro front and rear hubs. Front hub came from a radster in Belgium and the rear came from ebay. Was trying to track down some Hula Hoop rims, Ended up buying a complete bike from Bedford a couple of months ago, It had a Hula Hoop rim and Primo Pro hub front wheel. Stripped it down the other day and noticed that the number on the used hub is the same as my NOS rear 212.
So I'm still curious as to what the number relates too.