KerrisdaleGallery.com – stock ID#BP703sv-b – Blue Green Oval Spirals Abstract (untitled) by Peter Bradtke, to show accompanying Artist Biography – from “Künstlerkalendar ’75” , an oversized calendar featuring original serigraphs from 13 European artists, © 1975 Verlag F. Bruckmann KG, München (Bruckmann Publishing, Munich)