Antique Vintage Glass Magic Lantern Slides X 7 Of " P H Smith " Nomogram Chart
Item History & Price
Reference Number: Avaluer:3376765 | Colour: Black & White |
Date of creation: 1930s | Country/Region of Manufacture: United Kingdom |
Subject: Electrical | Singles/ Sets: Single |
Original/ Reprint: Original Print |
7 Black & White slides the depict information on The "SMITH CHART"Invented by Philip H Smith, it is a graphical aid for electrical engineers specializing in Radio Frequency.On 3 1/4" x 3 1/4" glass slide edged in black for protectionAs they are in an Ilford box, I assume they are for an Ilford Lantern (but not 100% sure)Great condition for age and shall be well packed for delivery.
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