Расскажите, где на фото O350

Может по ошибке указали?))

I always understood and they explained to me that the model of Mercedes O 350 bodied anywhere is O 350 but its commercial name TOURISMO

If you open any Mercedes catalogue, you won't find the O350 designation for the second and third generation Tourismo.
The official models for the first generation were "O350 , O350D2 , O350-15R , O403", with the O 403 being only outside the European market. Commercial names for the first generation were "O350 15RHD , O403RHD , Tourismo".
For the second generation (the one pictured) the official designations were 'TOURISMO RHD' and 'Tourismo 15 RHD' and the only marketing one was 'Tourismo'. There is no mention of 'O350' anywhere.
The situation is similar for the third generation: for the third generation, the official designations are 'MB E 15 RHD' and 'Tourismo 15 RHD', the marketing designation is 'Tourismo'. Again, no mention of the O350.
The same goes for the other Mercedes models: Travego, Intouro, Integro, etc.
They also lost the "O***" designation with the new generations

That's correct, but internally the chassis is O 350, just like the Intouro of any generation is O 560. In any case, I don't remember if I gave it the name or it was the moderator of the photos.

No. First of all, for the Tourismo there is no separate production of chassis and body, the buses come with an "integral" and one technical designation for chassis and body. Secondly, even if it had the designation O350, you would have to enter it in the "chassis" field, not in the "model" field

Let's see how I explain this to you. The bus has a whole body and chassis plus bodywork together and its name is TOURISMO and the chassis is O350. I put TOURISMO bodywork and chassis O 350, if it is wrong it is not my problem but the server's it is badly placed

Do you have at least one document where the technical documentation for the second generation of Tourismo says that the chassis is "O350"? I don't have any

You don't need any documentation, it's a bloody name and if you think it's misplaced by me, you correct it and if you know more than anyone, you correct it on the page.

I corrected it. I am writing to you so that you do not make such mistakes in the future