Eight (8) Pickett slide ruler items, including seven (7) boxed slide rules and one (1) dealer's slide rule parts kit. 1st-7th items: Seven (7) Pickett slide rulers housed in original boxes, including one (1) N16-ES and one (1) N600-ES Twin Pack, 2 items total, one (1) N3P-T, two (2) N600-ES, one (1) 400-ES Business Rule, and one (1) 400-T Business Rule, all comprised of yellow or off white aluminum with nylon indicators and stamped aluminum contoured posts. All with brown or black leather sheaths, eight (8) total instruction manuals, two (2) with information sheets, two (2) with guarantee registration cards. Slide rulers range in size from 6" to 12 1/4" L. Sheaths range in size from 6 3/4" to 12 3/4" L. Boxes range in size from 1 3/8" H x 9" W x 3 1/4" D to 2" H x 13 1/4" W x 7" D. All items circa early 1960's. 8th item: Dealer's Pickett Slide Rule Parts Kit, comprised of a card tray box with agate marbled paper sides housing numerical file tabs for parts numbered: 1-3, 5-8, 11-12, 14-22, 25-32, 36-37, 39, 41-42, 46-49, 51-54, from front to back with six additional parts housed in small manila envelopes or plastic sleeve in back. Typed yellow paper Pickett information labels pasted to top and interior of lid, dated January 1959. Metal pull tab with typed manila label reading "PICKETT SLIDE RULE PARTS" to front of base. 4" H x 12" W x 5 7/8" D. Circa late 1950's. Provenance: Private West Tennessee Collection. CONDITION: Overall good condition. 1st-7th items: Four rulers still in plastic sleeve. General use wear to boxes. 8th item: Overall wear to box. Two pieces of old masking tape, largest 1 3/8" x 3/4", to paper label on lid.