Original vintage optical industry trade magazine ad for LEEDS AND NORTHRUP COMPANY of Philadelphia, PA. Precision Standard Condenser. Designed in consultation with the Bureau of Standards. Old 1923 laboratory electrical measuring instruments advertisement.
leeds northrup company 1923 standard condenser vintage ad
- Product Code: s294
- Length: 9 inches
- Width: 6 inches
- Pages: 1
- Views: 24
- Availability: In Stock
- $20.00
$15.00
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