It has a super shallow seat tube for an artistic bicycle, but geometries have changed over the years.
I don't think it's a cycle ball bike, as claimed by the blog, as on those the seatpost sits inside the top tube (and has for a long time).
It also may be a Polo or "Reigen" (same sex couple formation riding) specific frame.
None of the parts are original.
Tobit Linke, Dortmund, Germany
> Message: 4
> Date: Sun, 18 Oct 2009 12:50:36 -0700
> From: donald gillies <>
> Subject: Re: [CR] Artistic cycling
> To: <classicrendezvous@bikelist.org>
> Message-ID: <20091018195036.8C95A4F419@lvs1-r4.ece.ubc.ca>
> Content-Type: text/plain
>
> Is this an instance of the "Walther Artistic" bicycle?
>
> http://tinyurl.com/
>
> The bars/stem do not fit the bill, but the straight forks and 1:1
> gearing match the description. Seems to be on-topic KOF lugged steel
> with a brooks saddle ...
>
> - Don Gillies
> San Diego, CA, USA
>
> P.S. original link :
>
> http://hkfixed.blogspot.com/