Slide rules HOME page COLLECTION NON-STANDARD RULES
Make Unknown, United Kingdom
Model Four faced, multi purpose rule.
1. This rule is undated but it believed that the use of slides longer than the rule went out of use around 1750.
2. The rule has scales for calculation (squares, cubes and trigonometry) on the front of the slides and scales for alcohol on the reverse of the slides, which are not reversible.
3. In total the rule has 31 scales.

This rule is from the collection of M Taylor.

Face 1
021-multi4-01.jpg (25594 bytes)

Face1- front left
021-multi4-02.jpg (39841 bytes)

Face2 -  front right
021-multi4-03.jpg (41152 bytes)

Face 2
021-multi4-04.jpg (24460 bytes)

Face1- front left
021-multi4-05.jpg (38659 bytes)

Face2 -  front right
021-multi4-06.jpg (42286 bytes)

Face 1
021-multi4-07.jpg (26083 bytes)

Face1- front left
021-multi4-08.jpg (49982 bytes)

Face2 -  front right
021-multi4-09.jpg (37893 bytes)

Face 1
021-multi4-10.jpg (24269 bytes)

Face1- front left
021-multi4-11.jpg (39670 bytes)

Face2 -  front right
021-multi4-12.jpg (40717 bytes)
 

Reverse of scales - left end
021-multi4-13.jpg (57973 bytes)

Reverse of scales - right end
021-multi4-14.jpg (59809 bytes)
Manufacturing date Type of rule suggests a 1750 date.
Length 12"
Material Boxwood
Scales See above
Cursor None