508 L 6/40 CA - I can find no info about alleged L 6/40 with AAMG (instead of CMG?..), also there are no photos with AAMG on a turret.
According to
http://www.italie1935-45.com/regio-e...tem/289-l-6-40 , delivered from 5/41 (now 3/41). But first were delivered to cavalry school, and they were shipped to Africa only in 12/41.
509 L 6/40 [37] - no sign of such tank with 37mm gun, apart from early prototypes, but they had short 37/26...
510,511 AB Coloniale - it's not clear what they're supposed to be. Photo is Belgian Ford/M-H 91Y armoured tractor. If we mean obsolete armoured cars, that were used away from main theatre, it can possibly be only Eastern Africa - and Fiat 611 and Lancia 1ZM were used there. A nice colonial car could be also
http://it.wikipedia.org/wiki/Fiat-Terni_Tripoli (btw, according to this page, they were initially armed with 6.5mm MG, but during the war they were rearmed with 12.7mm AAMG in an open turret). So, maybe after an advent of AB-40, older armoured cars should be available as colonial cars only? In case of Lancia 1ZM it would be until 1943 (on islands).
There is no sign of
armoured gun-armed trucks in Italian army, moreover, used in far colonies instead of main theatre. There could be used ordinary gun-armed trucks instead, described earlier. ("In Eritrea, an unspecified number of 65/17 guns were mounted on Fiat 634 trucks" - Italian Truck-Mounted Artillery in action)
515 Guzzi Trasporto - photo is in fact Belgian FN - there are Italian ones here:
http://www.italie1935-45.com/regio-e...guzzi-alce-500 name could be changed to Guzzi TriAlce
https://it.wikipedia.org/wiki/Moto_Guzzi_TriAlce
It was produced from 1940 (now 1/39)
524 Corazzata BB - the Italians used 305mm guns only until around 1937/38 (beginning of refit of Andrea Doria class)
525 Corazzata BB - photo should be 704 or 2004 - now it's probably 381mm (at least used as such by #523 unit)
564 Centro Radia OA - more appropriate as FO vehicle seems Carro Commando L40, built upon Semovente 47. It was turretless, open-top, armed with 8mm BMG (concealed as a gun). Icon would be of Semovente 1900/1901. Centro Radia command tanks had no AAMG anyway.
566 Carro M.41 OA, 567,715 SMV M.42 OA - seems, that both are in fact the same Carro Commando M.41. Proper photo is 16150 on the other hand. It was armed with single 13.2mm Breda (there was no twin 13.2mm BMG) and AAMG Breda 38 (Squadron/Signal book)
That's all.