An English pietra dura walnut book stand & another

An English pietra dura inset walnut book stands and a beadwork inset walnut stand
late 19th century
Hinge to book stand stamped BETJEMANNS PATENT / 7722. (2)
length of beadwork stand 22in (56cm)
Provenance: Property from the Collection of Edward and Mildred Lewis, Bel-Air, California.
Condition Report: Longest length of bookstand 25 1/2in. General marks, scratches, rubbing, nicks and wear. Darkening to metal elements.