Thomas Mayer
I think it would be confusing to have Italeri´s old (and as I guess mis-spelled) name in the company lists, too. So, why not use "Italeri"? 🙂

Juan M Leria
Well, this was the original name, not a mis-spelling but a game of words: ITALIA (country name) and AEREI (Air, in italian).
But... as you prefer.

Urban Gardini
It's the same firm, just the original name n' not the current name so I for one don't see a point in addin' the old name.

Burkhard D
Easily differentiated by the year of release, so I'd agree with Thomas and Urban. 🙂

scalemates
yes, I would keep it to Italeri as well