Thought I'd post some stuff that might help new people to collecting and/ or Case knives, and a refresher to some of us old guys. LOL!

Case's basc numbering system goes like this -  

Note: If there's a "0" in it it will mean a change has taken place at some point in it production. For instance the Stockman 6332 and 63032. Years ago a production change was made to the pattern so it went from 6332 to 63032.

1 - Hardwood

This number is usually used for a hardwood, such as walnut. Walnut is a very durable and rugged hardwood used for working knives; such as, the 1199SH Pattern and the 12031 electrician's knife.

2 - Smooth Black Synthetic

Black poured plastic molded handles usually made from Delrin® or Thermoplastic Rubber.

3 - Yellow Synthetic

Smooth yellow poured plastic molded handles, called Delrin®. 

4 - Smooth Synthetic

Poured plastic or Delrin® molded handles made in most any color except black and yellow. 

5 - Stag

Naturally shed or dropped deer antlers are used for the Stag handles in Case knives. The most desirable Stag comes from the Sambar or Chital deer in India. Stag covers are burned lightly during the completion process. 

5 - XX Prime Stag

Genuine India Stag with an extra rough texture - the best of the best. 

M5 - Midnight Stag

Genuine Stag except it is treated with a black dye and the covers do not get burned during completion. 

R5 - Red Stag

Genuine Stag except it is treated with a red dye and the covers do not get burned during completion. 

V5 - Vintage Stag

Genuine Stag that is not dyed or burned during the manufacturing process, but is given extra buffing and hand finishing. 

6 - Bone

Procured from Brazil, the shin bone of the Zebu cattle are the main source of bone suitable for Case bone handle materials. 

Jigged Synthetic

Plastic molded covers with a jigged pattern. 

Jigged Laminate

Laminated wood with a jigged pattern; such as used on the Folding Hunter. 

V6 - Vintage Bone

Natural Bone with a special jigging pattern which has similar characteristic to stag. 

6.5 - 6.5 BoneStag®

6.5 BoneStag®, a Case registered trademark, is bone handle which is jigged and treated with flame to achieve the look of stag antler material. 

7 - Rosewood

A handle material that comes from a number of hardwood trees from rain forests. It has a rose colored effect and is becoming more rare. Case used this in many of their outdoor knives. 

7 - Curly Maple

A knurly section of wood from a maple tree is used for handle material. The wood has a curled design, giving it a very distinct look. 

7 - Curly Oak

A knurly section of wood from an oak tree is used for handle material. The wood has a curled design, giving it a very distinct look. 

7 - Ebony

Comes from Africa. This black wood is also used in woodwind instruments. 

7 - Desert Iron Wood

Comes from the deserts of SW America or Mexico, a heavy wood which is regarded as some of the most beautiful wood anywhere. 

7 - Boi D'arc Wood

Comes from the Osage tree of Texas, this dense yellowish, orange wood is used frequently by Native Americans 

7 - Zebra Wood

Comes from Africa, a hard, dense, beautiful wood, naturally striped like a Zebra. 

7 - Tulip Wood

Comes from the Tulip trees, found in jungles and North America. 

7 - Lace Wood

Comes from Burma Rain Forest and is a hardwood. 

7 - Snake Wood

Comes from South America and is considered the heaviest wood on earth. 

7 - Amboyna

Comes from SE Asia, only the burls from the Narra tree are used to give the numerous, beautiful swirls that comes out in the Amboyna handles. 

8 - Mother-of-Pearl

Natural shells harvested by deep sea divers in various parts of the Pacific Ocean. 

8 - Abalone/ Paua

Gathered in Mexico, Abalone shells are cut into thin "feathers", edges are glued in thin sheets with each sheet color matches and then laminated with a high pressure laminate into sheets for handle material. Paua is a similar shell found in New Zealand. 

8 - Pink Mother-of-Pearl

Only pearl shells which are found in fresh water; no artifical color or enhancements added. 

8 - Black Mother-of-Pearl

Rare shell harvested by deep sea divers in various parts of the Pacific Ocean; no artifical color or enhancements added. 

9 - Corelon

A synthetic resin handle material developed in a wide variety of colors and patterns - similar to an imitation Mother-of-Pearl 

9 - Imitation Mother of Pearl

Not currently used at Case, Imitation Pearl is a composite material that looks like mother of Pearl. 

10 - Micarta

High pressure plastic laminate with either a paper or cotton cloth reinforcement substrate is used to make micarta. Micarta is a very durable handle material which is waterproof, impact resistant and polishes well. The lines and swirls that show in the finished knives are these layers of paper or cotton cloth. 

10 - G-10

Using the same process as the Micarta, G-10, however, has a glass cloth reinforcement substrate for exceptional strength characteristics with a very high impact and tensile strength.  The lines and swirls that show in the finished knives are these layers of glass cloth. 

B - Celluloid

Waterfall is celluloid, cream in color with a ripple design resembling a waterfall. 

RM - Celluloid

Christmas Tree is a very colorful celluloid with green, reds and some gold. 

EX - Exotic

EX indicates that the handle material used is from a variety of the most unique and desirable materials available; such as, precious gemstones, giraffe and ostrich bones, etc. 

GS - Celluloid

Goldstone is celluloid, colored with gold metal flakes. 

I - Ivory

Since the last ice age, the Mammoth Ivory tusks have been locked in ice some 12,000 years. This is perhaps the most beautiful and exotic of all handle materials which Case uses. 

I - Imitation Ivory

Not currently used at Case, Imitation Ivory is a composite material that looks like natural ivory. 

P - Pakkawood

A laminated wood typically birch or maple, impregnated with clear resin and bonded together. Pakkawood has the natural beauty of finished wood and a high resistance to heat and moisture, especially developed for Case handles in 1948. 

R - Celluloid

Candy Stripe is a celluloid material colored in a striped (vertical or horizontal) design.

And here's a page on jugging patterns - http://www.wrcase.com/case_college/handles/jiggingpatterns.php

A list of Case patterns - 

http://www.wrcase.com/case_college/patterns/knifepatterns.php