1. Furnace Element/ Greenhouse Element: Construction Diagram II Bookmark Furnace Element/ Greenhouse Element: Construction Diagram II, accession number 2020.27.24. Search result 1 Artist: Roloff, John Classification: Work on paper Materials: Pencil on lined vellum Dimensions: 24 x 36 in. Accession Number: 2020.27.24
2. Greenhouse Element / Furnace Element: Construction Diagram I Bookmark Greenhouse Element / Furnace Element: Construction Diagram I, accession number 2020.27.48. Search result 2 Artist: Roloff, John Classification: Drawing Materials: Pencil on lined vellum Dimensions: sheet: 24 x 36 in. Accession Number: 2020.27.48