A motherlode of images here, and a link to the Rumpolt recipe. http://www.larsdatter.com/pretzels.htm Jim Chevallier Contributor, Savoring Gotham A Food Lover's Companion to New York City Editor-in-chief: Andrew F. Smith and Foreword by Garrett Oliver https://global.oup.com/academic/product/savoring-gotham-9780199397020?cc=us& lang=en