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Details and Image
Type
Model No.
Maker
Country
Construction
Material
Date
Scale Length
Area of Use
Two Fold Slide Rules
Unknown / Carpenter Coggeshall
Unknown
UK
Wood/brass
1828-1862
28 cm
Timber
Notes:
"Tunnel hinged with typical Coggeshall layout. The D Girt line = 4-4. On the reverse side, in addition to a 24 inch ruler, are 8 Square and Line scales used for laying out the cut lines for turning square or round timber octagonal. "
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Image 5
