achromatic doublet lens
Date: mid 20th Century
Inventory Number: 2006-1-0022
Classification: Lens
Maker: American
User: Science Center Prep Room, Harvard University (founded 1974)
Donor: Owen Gingerich (born 1930)
Cultural Region:
Dimensions:
concave lens: 0.6 × 4.5 × 4.5 cm (1/4 × 1 3/4 × 1 3/4 in.)
box: 2.5 × 5.4 × 5.4 cm (1 × 2 1/8 × 2 1/8 in.)
Description:
Small cardboard box contains a matching pair of 45 mm lenses, one bi-convex and the other plano-concave. Lenses are wrapped in paper.
Signedunsigned
Inscribedstamped on underside of box, with numerals inserted in pencil: SUBSTITUTE. WE ARE / COMP[LE]TE[LY OUT OF THE] ITEM YOU / ORDERED. 6056 -- WE SUBSTITUTED / THIS AS BEING CLOSEST ITEM. / 6058
stamped on top of box: DIAM 45 MMS / FL 5.66 IN.
stamped on top of box: DIAM 45 MMS / FL 5.66 IN.
ProvenanceSalvaged from the Science Center Prep Room by Owen Gingerich.