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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
"Slide Rules, Other"
Various / Miscellaneous Slide Charts
Various
USA
Cardboard
1960s
N/A
Engineering
Notes:
"Five slide charts mainly made by Perrygraaf Corporation for electronics, microwaves and radio frequency calculations. All probably doubled-up as promotional gifts."
Image 1
Image 2
Image 3
Image 4
Image 5
Image 6
Image 7
Image 8
Image 9
Image 10
Image 11
