Vintage wood and glass wash board / wash dolly board / collectable / prop/ skiffle board
 23 inches high
top is 14 and a half wide
12 inches across 
thickness 1 and a half inches approx.
the wood, pine, I should think, has a nice bleached look from much use.
the glass is ridged, to assist the cleaning of fabric and has a herringbone pattern.
Has only been used as a theatrical prop in recent years
I have photographed the historic woodworm holes. the wood has been treated.
its been in  my house for over 20 years with no spread of  wood worm