One point goes to Wendax.
He was the first with the Denmark guess and had the right name.
It´s a one-off and homebuilt car, done by a danish blacksmith named Nielsen and in 1960 when this essay was published noone did know more, no date etc.
Does any member know more, now that we all have the name?
EDIT: I´ve translated the text to my best means for all non german speakers:
Experts in Denmark have started to explore the veteran piece by piece, which may be the eldest car ever built in Denmark.
A Blacksmith called Nielsen is said to have constructed the vehicle many years ago.
The exact date is unknown.
Most of its parts are handbuilt: the upper photo shows the one-cylinder engine with the ventilator.
In the middle you can see the indestructible gem in its whole beauty.
And the wheel at the bottom is a predecessor of the “Schwingfelge”
(GROB: a 1950´s german invention of a special type of rim with a rubber suspension-ring
between the outer rim and the inner rim/hub, which was used on some VW Beetles and Porsche 356´s then).
Please take a closer look on the coil springs between the axle and the wheel hub.
(GROB: I think it was just another experimental way to suspend the car (no brakes I think), like the steel “tyres”.
Those were quite common in Germany and other countries without tropical colonies due to rubber blockades in WW I.)
