This item is in the Leopold and Rudolf Blaschka collection.
Drawings folded along vertical edge with first drawing on p.  and second drawing on p. . Drawing on p. , labeled Chysis aurea, is of five views of interior of plant with details in green and yellow. Two small, crude sketches on p. . Drawing on p.  is includes three views, in yellow, orange, and red, of interior of Miltonia regalli and five views of interior of Chysis aurea.
Chysis aurea is a type of orchid; Miltonia regnellii, commonly known as the Regnell's Miltonia, is a type of orchid native to southeastern and southern Brazil.
This drawing is part of a series of botanical drawings created by the Blaschkas to reference in constructing glass models for the Botanical Museum of Harvard University.
Leopold and Rudolf Blaschka collection
Digitized by Harvard Museum of Natural History 2006.
Red pencil markings on lower right corner of p. .
Some notations penciled in.