Dewar flask and container
Datecirca 1980
Inventory Number1996-1-0133
ClassificationContainer
Subject
Maker
Day-Impex Ltd
1946-present
User
Gray Herbarium
founded 1842
User
Elso S. Barghoorn
1915 - 1984
Cultural Region
Place of Origin
Place of Use
Dimensions33.5 × 18.4 × 17.9 cm (13 3/16 × 7 1/4 × 7 1/16 in.)
Material
Accessorieslid/container
DescriptionA black plastic cylinder, with a slight groove near the top. A little more than a third of the way down is a black rim. A black boxy handle is hooked into two loops embedded in the rim. The mouth of the cylinder is wide. The inside of the cylinder is shiny (presumably made of dewar) and hollow. The lid, which is also black on the outside, is white on the inside. Both the cylinder's lid and its inside rim are threaded to screw into one another. About a third of the way up from the bottom of the cylinder is a red and white label. The label is very close to being a rectangle, but is in fact a pentagon.
Signedlabel on flask: DILVAC / (R)
Inscribedlabel on flask: DILVAC / (R) / DEWAR FLASK / AND / CONTAINER / No. 990/222 / REFILL NO M470/222 / MADE IN ENGLAND
FunctionIt is not known what this flask was used for. Perhaps to store specimens in liquid Nitrogen, or to freeze specimens for investigation or microtome. Then again, it may have kept someone's lunchtime borscht cool.
ProvenanceFrom Prof. Elso S. Barghorn, Gray Herbarium, 105, Harvard University.
Hammond Typewriter Company
Date: circa 1923
Accessories: four Hammond type shuttles for different type faces, each with a wooden storage box; four laminated paper rectangles with symbol placement guide; instruction book, instruction sheets, advertisements, and correspondence (in object file)
Object number: 1996-1-0373
American
Date: 1870-1930
Accessories: small rubber hose; tiny metal clamp-like component
Object number: 1996-1-0426
Jakob Amsler
Date: circa 1906
Accessories: instrument is in four (4) parts; the rail is in own box and is inventory # 2006-1-0002b; letter from Prof. William Brower containing the complete history of ownership and use (missing)
Object number: 2006-1-0002a
American
Date: 1850-1900
Accessories: calorimeter; stand; lid
Object number: 1997-1-1142
Date: 1890-1930
Object number: RS0505
The W. M. Welch Scientific Company
Date: 1910-1940
Object number: 1996-1-0484
Louis Dupin
Date: circa 1849
Accessories: book shaped storage case; six photographs and negatives of case and models with ruler scale (in instrument file)
Object number: 1996-1-0006
E. Ducretet & Cie
Date: circa 1879
Accessories: None
Object number: 1999-1-0018
