Zonophone serial numbers

[phonodesbois]

While looking at european zonophones, I was surprised with the serial numbers I found as
32780 (top with cyrilic letters)
2 ½ 4377 (top with cyrilic letters)
3 3 1 6 9 (plain top)
Is there a way to date these motors (all valiquette type) ?
As well, I will like to put the right motor in the right machine ( style A, fluted base and I think style C).
Thanks for your help.