Estonian / German / Russian clarinetist and clarinet maker Iwan Müller (1786-1854). [Unknown authorUnknown author / This image is available from the New York Public Library's Digital Library under the digital ID 1504340: digitalgallery.nypl.org → digitalcollections.nypl.org -- Public domain -- http://commons.wikimedia.org/wiki/File:Iwan Müller.jpg]