Slide rules HOME page COLLECTION 5" RULES
Make Pickett, USA
Model N300ES Dual base log-log

1. This rule is one of the range in "Eye-saver yellow" promoted by Pickett as being less tiring to use.
2. The rule is one of a pair with a 10" rule (N500 ES). Whilst the aim would have been to use familiarity with one rule to facilitate use of the other, in fact there are quite a few differences in the scales.
3. The rule is of all metal construction.

Front view
0511-pickett-n300es-01.jpg (14981 bytes)
Detail - front view
0511-pickett-n300es-02.jpg (11405 bytes)
Back view
0511-pickett-n300es-03.jpg (13830 bytes)
Detail - back view
0511-pickett-n300es-04.jpg (11907 bytes)
Manufacturing date 1962 (marked on 10" rule of pair)
Length 5"
Material Metal
Scales LL1, A [B, T, S, C] D, LL2
LL3, DF [CF, CIF,  CI, C] D, L
Cursor Plastic with metal screws
Hair lines One
Documentation None
Condition Mint