[Research papers, compiled by Eugene Gaspard Marin, chiefly re sundials and windmills. The numerous folders are arranged according to Marin's particular classification scheme. 5 boxes. Listing available]
[Research papers, compiled by Eugene Gaspard Marin, chiefly re sundials and windmills. The numerous folders are arranged according to Marin's particular classification scheme. 5 boxes. Listing available]