Solved: Wendax 4081 - Mercury Series 99A panel van by Spier

[Wendax]

Spier?

You've got the hint. Spier it is and one of Spier's best known work are the UPS vans, (https://www.autopuzzles.com/forum/2019-49/wendax-2984).

[fromwien]

Thank you very much. Without your pleasant hint, I would never had thoughts on Spier coachbuilder. I made a lot on mistakes by searching for the body-maker as I ever thought, it's a hearse, but now I think it's a delivery van