Hyperbolic Match Output


Maker:ARQUIMEDES (Brazil)

Model:Archimedes Vectolog 21-D

Scales Front: || LLo1, LLo2, LLo3, DF || CF, CIF, CI, C || D, LL3, LL2, LL1 ||

Scales Back: || L, K, A || B, T, ST, S, C || D, Th, Sh2, Sh1 ||

Gauge Marks:

Cursor Front:

Cursor Back:

Construction: 25cm.


Source: J.R.G.

Information: Have no other details on this slide rule. It was reported to the ISRG to exist by Joäo Roberto Gabbardo 06/09/2006. By email he furnished me the information shown here. We do not have pictures of the rule, and so scale arrangement is estimated.
However, in Herman's Archive on information provided by "Roberto" the scales are given as: Front: LL01 LL02 LL03 K A = B CI CIF C = D L P LL1 LL2 LL3. and Back: = S ST T = and is thus not an hyperbolic rule.