Dated circa 1870 – 1920. Very good antique condition, No chips, cracks or repair. Approximate dimensions: 13 5/8″ x 12 5/16 x 1 5/16″. For more pictures, please ask. See the actual state on the photos. If there is a real interest, please ask and I’ll give an exact description of the goods. If I have not written or show any damage – do not have it; then it is actual wear (Please, see photo). Mehlem’s new factory was founded in 1840. “Royal Bonn” trade mark was used from 1890 – 1920. Franz Guilleaume born 20th September 1848, in Köln – died on 3rd January 1914, in Bonn. The factory was closed in 1931. Thank you for your interest.