a pair of alt-haldensleben saxon dated armorial plates

a pair of alt-haldensleben saxon dated armorial plates
Second half 19th Century, one marked with a faint blue stroke and incised marks
One decorated in colours with an elaborate crowned coat of arms flanked by two swans, on a scrolling vignette, the border with crowned monogram WG, the reverse inscribed with W. Grf zu Westerholt Gysenberg s/m G.v. Ohlen Adlerskron Bonn B. 1866; the other decorated with an elaborate helmetted coat of arms flanked by two lions, on a scrolling vignette, the border with crowned monogram LD, the reverse inscribed with L.v. Knebel Doeberitz s/m L.v. Ohlen Adlerskron Bonn B 1865
27 cm. (10 5/8 in.) diam. (2)