1. Exponential log-log rule.
2. This is a late model 800-T before the N prefixes were added to the model number. In all respects however this is identical to the N800-T as it has the nylon cursor blocks as well as the square end pieces.
3. For additional versions of this model refer to Pickett 800 and Pickett 800-T (1)

Brand	Pickett
Model	800-T LOG LOG, Speed Rule
Country of Manufacture	USA
Scales Front	LL1, LL01, A [B, ST, T, S, C] D, DI, K
Scales Back	LL2, LL02, DF [CF, CIF, L, CI, C] D, LL3, LL03
Number of Scales	22
Slide Rule Materials	Aluminium
Cursor Materials	Nylon/Plastic with metal screws
Cursor Lines	1 Front, 1 Rear
Scale Length	25 cm
Length	30.7 cm
Width	3.8 cm
Condition	Good
Documentation	None
Accessories	Leather case with belt loop Original box