Gnomon not attached. Inner glass is clear with sundial design in pale orange and brown. Glass along rim is dark green. Dial shows hour markings and images of zodiac constellations. Two coats of arms (unidentified). Gnomon would have been attached to struts mounted to the lead frame of the backside (ie, exterior) side of the sundial. A dot remaining on the forehead of the solar face indicates where the toe of the slope gnomon would have touched the glass.
Crests are potentially the martialed arms of a married couple (H.V.R. refers to the the fish crest, A.I. refers to the chevron crest).
Материал
1529 (at bottom) / HVR/AI (in ribbon above coats of arms) (the latter may perhaps mean "hours") / Unsigned