Handwritten Engineer's Laboratory Notebook

Made by Unknown engineer, Bell Telephone Laboratories1958New Jersey, United States

A cloth-bound laboratory notebook kept by an unidentified engineer, filled with pencil derivations, circuit sketches, and test data relating to early transistor amplifier design. Working notebooks are primary evidence of how engineering actually proceeded — the false starts and marginalia that published papers erase.

Provenance

1958

Kept by an unknown engineer, attributed to Bell Labs

attributed

1989

Found in an estate sale, Summit, New Jersey

owner supplied

2021

Acquired by current collector

documented

2026

Digitally preserved in Relic

confirmed

Current Custodian

Dr. Adaeze Okafor

Mid-Atlantic, United States

Request Research Access

Access Matrix

Digital viewingpublic
Additional photographsby request
Remote video inspectionavailable
Research visitowner approval
Temporary research loancase by_case
Museum exhibition loanavailable
Scientific samplingowner approval
Commercial licensingcontact owner

Record Metadata

CategoryPersonal Archives

MaterialsCloth binding, grid paper, graphite

Dimensions28 × 22 cm; 212 pages

ConditionGood; spine wear, pages complete

Digital Record

24 high-res images (8,192 × 6,144)

3D Mesh / Photogrammetry

Precise digital measurements

Doc. Score: 71/100Scanned 8/30/2026

Cite this object

Relic Archive. (1958). Handwritten Engineer's Laboratory Notebook [Object record]. Relic Object RL-1958-000303.