<http://schema.org/description>
"Pre-1920s star map used as an educational tool. The map represents the appearance of the sky on the 15th of each month at specified hours. The background is a pale robin's egg blue. Lithograph displayed with a cream rag mat and in a wood frame with a lacquer satin finish. Plate 52."^^<http://www.w3.org/2001/XMLSchema#string>
<https://www.onekingslane.com/p/2002430-early-20th-c-star-map>