Hillman with Hill & Boll coachwork at Olympia 1929

[Oguerrerob]

Allgemeine Automobil-Zeitung, 1 November 1929

[grobmotorix]

Thank you - I knew this article already - unfortunately it also doesd not give a hint, what this car exactly was.

[Oguerrerob]

Maybe you've seen this video about 1929 Olympia Motor Show.
Note the ad over the car

[grobmotorix]

WOW! Thank you!
As this glass sliding roof was new and unique at this show, I am sure we now have the final solution.
It must be a special coachwork of Mann Egerton then.

So that is TWO more points for you Oguerrerob!

[Oguerrerob]

Thank you!!

[pnegyesi]

I have to reopen this puzzle. Autocar credited Hill & Boll for the coachwork in their very extensive London Show Report

[grobmotorix]

One point for you Pal.

This now sounds really like the final solution!

[pnegyesi]

Looked really interesting.