in graphite inside upper paste-down upper left: prayer book; upper center first free end-paper in graphite: drawn [?] with pen & ink / arms of August Duke of Bavaria / for whom this volume was written; inside lower paste-down in graphite upper left: 25; upper center: 187/1 / IHL/80
Unidentified collector (bookplate, DP on cross over coat of arms). Unidentified collector (bookplate, M? under cross). (Paul Grinke, London); purchased 2009 by NGA.
- Merlos, Johann Jacob. Kölnische künstler in alter und neuer zeit. Nieuwkoop, 1966, 478-479.