psr-600 build dates

[weather22]

I just bought my first digital scanner. The old pro-2006 goes on the back shelf.
How do I tell what build date and cpu version I have ? The psr-600 box has three numbered stickers on it.One of them should be the build date? I will use win500 to program it

Thanks

 

[Dubbin]

It should be on the back of the radio.