I've looked a several adverts from the 30's-50's and there is no mention of a Renown. I did find a '39 Phillips Club bike on CL that is listed as all original, it has identical rims and the brakes look simular. It's hard to imagine that with all the Hercs still out there, no one has heard of this model. I e-mailed a Velo collector in Munich today, perhaps he may be have some knowledge of the model?