which was based on... Pretoria
Heron2001 ha detto 
which was based on... Pretoria
Pretoria Gross
Top right of the z though says no. Not only to the Pretoria/Africaans (Brendel/B&P), the Vivian (Dieter Steffmann), Vostrey (WSI), P820-Deco (Softmaker) and the Evelyn Becker (DataBecker?) But also to the Storybook.

Storybook looks close enough, and I really don't see any problem with the top right of the z to be honest.

Exact = exact as you made clear. Storybook is close, true, but not exact and not only for the right top of the z. If it were only that, the pretoria and some others are closer.
Pretoria has nothing in common with the sample, it has rounded edges, the sample has straight edges, just like Storybook, and some letters have a really different shape

And you didn't answer my question about the difference between the sample and Storybook when it comes to the top right of the z, because I don't see any.
Pretoria/Africaans (Brendel/B&P).
Sorry, but taking such an unsharp image doesn't really prove anything. All I'm saying is: Jackie's suggestion is definitely not a good match because of the rounded edges and the different shapes. And Storybook is a much better match. If we had a perfect PNG instead of this photograph, we could be 100% sure but in cases like these, being 99% sure is enough, as far as I'm concerned.
You decide. You set the rules of the game. When you want something that is not an exact match by far to be an exact match, OK. As long as you understand that you are wrong.
Fuso orario: CEST. Ora sono le 09:40