![Steingutfabrik Franz Anton Mehlem / Steingut-Fabrik und Kunsttöpferei F.A. Mehlem, Inh. F. Guilleaume -](pages/data/201006011351Royal Bonn 2_edited-1.jpg)
Stein shown complete with marks immediately underneath.
![Steingutfabrik Franz Anton Mehlem / Steingut-Fabrik und Kunsttöpferei F.A. Mehlem, Inh. F. Guilleaume -](pages/data/201006011350Royal Bonn_edited-1.jpg)
Impressed roundel mark, plus ink stamped tower mark, together with decoration number & decorator signature.
![Steingutfabrik Franz Anton Mehlem - Royal Bonn 2](pages/data/200812230815Mehlem_edited-1.jpg)
Impressed roundel mark, dated circa 1870 - 1920
![Steingutfabrik Franz Anton Mehlem - Royal Bonn 3](pages/data/200812230816Royal Bonn_edited-1.jpg)
Handwritten ink mark, "Royal Bonn, Delft", dated 1890 - 1920.
![Steingutfabrik Franz Anton Mehlem / Steingut-Fabrik und Kunsttöpferei F.A. Mehlem, Inh. F. Guilleaume -](pages/data/200911300734Mehlem%20bonn_edited-1.jpg)
Impressed roundel mark, dated circa 1870 - 1920
![Steingutfabrik Franz Anton Mehlem 4](pages/data/200901012027Franz%20mehlem_edited-1.jpg)
Ink stamp tower mark, dated circa 1885 - 1920.
![Steingutfabrik Franz Anton Mehlem 000001](pages/data/201011240834Mehlem%20Bonn%20845_edited-1.jpg)
Ink stamp mark,"Crown & shield", plus impressed roundel, dated circa 1890 - 1920.
![Steingutfabrik Franz Anton Mehlem 13-11-11-1](pages/data/201311110956Bonn stein.jpg)
Blue and White "Delft" stein
![Steingutfabrik Franz Anton Mehlem 13-11-11-2](pages/data/201311110957Royal Bonn mark.jpg)
Handwritten ink mark on the above Blue & White, "Royal Bonn, Delft", dated 1890 - 1920.
![Steingutfabrik Franz Anton Mehlem / Steingut-Fabrik und Kunsttöpferei F.A. Mehlem, Inhaber Franz Guilleaume 13-9-17-2](pages/data/201309171249Mehlem.jpg)
A strong Jugendstil influenced design.
![Steingutfabrik Franz Anton Mehlem / Steingut-Fabrik und Kunsttöpferei F.A. Mehlem, Inhaber Franz Guilleaume 13-9-17-1](pages/data/201309171248Mehlem mark.jpg)
Basemarks on the featured Jugendstil stein above.
![Steingutfabrik Franz Anton Mehlem - Royal Bonn 6](pages/data/200901211643Royal Bonn 2_edited-1.jpg)
Handwritten "Royal Bonn, Delft", dated 1890 - 1920. Ink stamp,"Crown & shield", dated circa 1890 - 1920. Ink stamp mark "Triangle" dates unknown.
![Steingutfabrik Franz Anton Mehlem -](pages/data/200906210740Royal%20bonn.jpg)
Handwritten ink mark, "Royal Bonn, Delft", dated 1890 - 1920, plus impressed roundel mark.