Ok, time for an update on this. I got the frame & forks today so now i am finally able to post more specific photos, although quick ones to help ID what this frame & fork might be. Here we go..

The frame & fork overall.

Headtube & gusset, notice the CrMo stamping on the top tube.

Inside view of the rear drop outs with those reinforcements.

Outer side of the rear drop outs.

The oval tubing, partially capped fork and the somewhat unusual drop outs.

I found this fascinating, the fork tube is knurled under the bearing race.
Ideas/suggestions?
Thanks for your patience again,
-Timo