1. This rule has 34 scales - a record?
2.  These include:

• Three cube (root) scales.
• Two square (root) scales.
• Four log-log scales and 4 inverse log-log scales.
• The hyperbolic scales (2 tanh and 1 sinh).
• Two log scales (one Naperian and one base 10)

3. The rule is surprisingly compact. The surface area of the rule (including end braces) is 161 cm², compared, for example with the Faber Castell 2/83N which has 30 scales but uses 215 cm². This gives a very different "feel" to the two rules; the FC seems large and impressive whilst the Pickett feels much more functional.
4. The log-log scales cover the range 1.0025 to 10¹⁰. (A more normal maximum is 10⁵.)
5. There are different displaced C/D scales. A displacement of p on one face and of e on the other.
6. The movement of the slide is extremely smooth - small movements can be made very accurately.

I have used the "standard" designations rather than those on the rule. Pickett labels their log-log scales from LL1 to LL4.