Date codes Mikuni VM29 smootbore carbs

Hi All
I Have two Mikuni VM29 smoothbore sets, one is a with  Acellerator pump, code on de carb body's is "W/3.
The other one (no Pump) is coded Q2/72 on the body's
Question: is there information/meaning/lists  available about these codes or is there a member here who can explain these codes.

Willem
 

WG Carbs use to have a forum, don't know if it still exists but he is able to decipher those numbers. I think he has data/lists that he pulls info from.

You may be able to contact him directly as his main web site is still active. Just Google WG Carbs.