Zone d'identification
Nom et localisation du dépôt
Niveau de description
Dossier
Titre
Folder 5: G. Felsenthal & Sons, Incorporated: Computer, air navigation, dead reckoning, type MB-4
Date(s)
- ca. 1945? (Production)
Importance matérielle
Zone du contenu et de la structure
Portée et contenu
"(Device, leather pouch). No date, ca 1945? 11 x 4.75", printed plastic scale slides printed metal circular discs fastened with screw posts, spacer, grommted rotating dial with diecut windows to expose calculations, other side has clear plastic window to reveal plastic scale, rotating dial with large window held by metal struts. 2-piece leather pouch, sewn along edges. Computer bit rubbed, soiled manuscript calculations added to scale, pouch." -Peter L. Masi