Identity elements
Reference code
Name and location of repository
Level of description
File
Title
Tables, receipts, patent
Date(s)
- 1918, 1923, 1926 (Creation)
Extent
Box 6
Name of creator
Content and structure elements
Scope and content
Ledger page, patent issued to L.B. Booth, tables and drawings regarding optical behavior of lenses, receipts from the Spencer Lens Company