Church of the Cistercian Abbey Altenberg, Odenthal

Brown ink, brown wash, and graphite on light tan antique laid paper, with two compass lines, the lower of which reinforced with graphite, laid down on antique laid paper

Brown ink on off-white antique laid paper

Brown ink and brown wash over touches of black chalk on antique laid paper, toned with red wash and white opaque watercolor

Brown ink, brown wash, and touches of black chalk on cream antique laid paper

Brown ink and brown wash on wood; verso: red chalk

Brown ink and white opaque watercolor over black chalk on cream antique laid paper, original partial framing line in brown ink

Brown ink and gray wash over traces of black chalk on cream antique laid paper, framing line in brown ink

Black ink, reddish-brown wash, and partially oxidized white opaque watercolor on light tan antique laid paper, framing line in brown ink

Brown ink and brown wash over black chalk, extensively incised, on cream antique laid paper

Brown ink on cream antique laid paper

Brown ink with incidental red and black chalk on off white antique laid paper; verso: brown ink

Brown ink, brown wash and white opaque watercolor over black chalk, incised, on cream antique laid paper