Keizersberg Castle in Leuven

Red chalk [moistened?] on cream antique laid paper

Gray wash and brown ink on cream antique laid paper, framing line in brown ink

Black and white chalk on light tan antique laid paper, laid down

Brown ink and red wash, over traces of black chalk, partially incised, on cream antique laid paper; traces of later restoration in white opaque watercolor; verso: black chalk and graphite

Brown ink, gray wash on antique laid paper

Black chalk and gray wash, partly incised, on cream antique laid paper, mounted down entirely

Black ink, gray wash and graphite on off-white antique laid paper

Black chalk, partially incised, on off-white antique laid paper; framing line in brown ink; verso blackened with chalk for transfer

Black ink, gray and brown wash, and transparent watercolor on cream antique laid paper, framing line in brown ink

Gray wash with black chalk and graphite, green and rose transparent watercolor, scraping and traces of white opaque watercolor on cream antique laid paper, toned with brown wash, framing lines in graphite and gray wash

Brown ink and brown and pale brown-gray wash, and touches of white opaque watercolor over traces of black chalk, on cream antique laid paper, framing line in brown ink

Brown ink on antique laid paper probably toned with light brown wash, framing line in brown ink