The Grey House was probably painted in Amsterdam when Whistler and his wife were there in September 1889. 1
The Grey House
, Freer Gallery of Art
The Embroidered Curtain
, etching & drypoint, The Hunterian, GLAHA 46999 (G451 2/10)
It shows the same scene as Jews' Quarter, Amsterdam  and The Embroidered Curtain , which date from 1889.