Bryan Valence Blocks
name: label: maker
content: Porter Chemical Company
notes: label: Description
content: Arthur Herbert Bryan, a science teacher at Baltimore City College, designed Valence Blocks for use in chemistry classes. This set was made by the Porter Chemical Co. of Hagerstown, Md.
label: Description
content: Ref: Arthur Herbert Bryan, “Valence Block for Illustrating Chemical Reactions,” U.S. Patent 2,140,103 (Dec. 13, 1938).
label: Description
content: Arthur H. Bryan, “Valence Blocks Visualize High School Chemistry Fundamentals,” <i>School Science and Mathematics</i> (Nov. 1940): 758-760.
label: Location
content: Currently not on view
place: label: place made
content: United States: Maryland, Hagerstown
setName: label: See more items in
content: Medicine and Science: Chemistry
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: 1994.0019.33
label: accession number
content: 1994.0019
label: catalog number
content: 1994.0019.33
objectType: label: Object Name
content: Molecular Model Kit
physicalDescription: label: Measurements
content: overall: 3 in x 8 1/2 in x 5 1/2 in; 7.62 cm x 21.59 cm x 13.97 cm
label: Measurements
content: overall: 3 1/8 in x 8 1/2 in x 5 1/2 in; 7.9375 cm x 21.59 cm x 13.97 cm