How much is a Case pocket knife worth?

A Case knife is the tang stamp and the pattern number, not the shield. Dots date the 1970s. A blade that wobbles is the failure.

ToolsThriftingJournal

A Case pocket knife is a slipjoint from W.R. Case & Sons, and the date sits on the tang of the master blade. The brand stamp reads Case XX, sometimes with the word Tested, sometimes with U.S.A., sometimes with a row of dots. From 1970 through 1979 those dots are a year you can read without a chart: ten dots for 1970, one fewer each year, so a single dot is 1979. Earlier stamps, and the codes Case used after 1979, are just as real and easier to get wrong. Match them to Case’s own tang chart or a printed reference you can look at twice. Do not invent the year from the color of the bone or from the little shield in the handle.

The other stamp is the pattern number. On a 6254 the last two digits, 54, are the trapper, the two-blade pattern people mean when they say Case trapper. The leading digit is the handle material in Case’s key. A 6 is the jigged handle, bone on older knives and a synthetic that copies bone on many later ones. A 5 is stag. The digit between them is the bolster code. If you only half-remember the key, photograph the number and look it up. A wrong pattern name sends the knife to the wrong buyer. This page will not quote a trapper. Sold listings of that tang, that pattern number, and that amount of blade play are the price.

What to look for

The tang stamp
Open the master blade and read the whole stamp: Case, XX, Tested if it is there, U.S.A. if it is there, and every dot. A crop that keeps XX and cuts off the dots is how a 1970s knife loses its year. If the stamp is worn smooth, say it is worn. Do not redraw it.
The pattern number
Stamped on the other tang or the secondary blade. Write down every digit, including a letter suffix if there is one. 54 is the trapper ending. Other endings are other patterns. The shape in your hand does not overrule a number you can read. If the number is gone, the pattern is unidentified.
The shield
Many handles have a metal shield inlaid in the bone or stag. A missing shield leaves a shield-shaped recess. A replaced shield may be the wrong metal for that stamp. The shield was used across decades. It is not a pre-1970 test, and it is not a date. Photograph it and then ignore it for the year.
Walk and talk
A slipjoint should snap shut. A half-stop, the pause partway open, is how many of these knives were made. It is not damage. Side-to-side wobble at the pivot is wear. A blade that will not close, or a spring that is cracked at the pin, is a knife that does not work. Do not call wobble “patina.”

What moves the price

Which tang
A dotted 1970s stamp, a mid-century Case XX without dots, a Tested stamp, and a later code are different searches. Pre-1970 means you are in the stamps that do not carry that dot year. It does not mean the shield makes it older, and it does not mean every dotless knife is scarce. Comp the stamp you can show.
Handle
Cracks running from the pins, a shrunk stag scale, jigged bone that has lost its color, and a later synthetic that still looks like bone. A cracked handle is the condition. Do not fill it and shoot from far away. Delrin and bone do not share a sentence in the title unless you know which one you have.
Blades
A broken tip, a blade that has been ground down past the etch, and rust pitting in the nail nick. The Case XX etch on the blade wears off with sharpening. A vanished etch is not a fake by itself, and a fresh etch on a soft blade is not proof. The tang stamp is the brand. The edge is condition.
A sloppy stamp
Fake Case knives exist, usually with uneven letters, a pattern number that does not exist, or a shield glued into a recess that does not fit. Compare the letter spacing with a known Case stamp before you pay a tang-stamp price. If you cannot tell, do not list it as Case.

Where to sell

eBay
Tang stamp, pattern number, and handle material in the title, with macros of both tangs. Say if the blade wobbles. Knife buyers read the tang first and the hero shot never. A common later trapper in rough shape may not clear a fee and a mailer. Look at sold listings of that exact stamp.
Local
A handful of user knives, or one you will not ship because the snap is tired, is a table sale. Let the buyer open and close it. The snap is the condition they came for.
Carry it
A sound Case with a real snap, bought as a user, is a pocket knife. Not every XX stamp is a collector sale. The tool guides next to this one are the same idea: a usable marked tool can be the result.

What a photo can settle

Both sides of the open knife, the tang stamp filling the frame including every dot, the pattern number, the shield or the empty recess, and a blade tip if it is broken. Worth can read a sharp Case XX. It cannot count dots you cropped, date a shield, or feel wobble. The tang is the year. The pivot is the condition.

Questions

What do the dots on a Case tang mean?
On knives stamped from 1970 through 1979, the dots are the year. Ten dots means 1970. Nine means 1971. The count falls by one each year, and a single dot means 1979. Dots outside that system, and stamps with no dots, need Case’s tang chart. Do not reuse the 1970s count on a later knife.
Does the shield mean the knife is pre-1970?
No. The shield is an inlay in the handle, used on many years of Case knives. Pre-1970 is a statement about the tang: no 1970s dot year, and a stamp style you have matched to a chart. A shield-shaped hole means the shield is missing. It does not mean the knife is early.
Should I sharpen it before I sell it?
A light hone on a knife you understand will not hurt a user blade. Grinding a tip back into shape, or buffing the tang until the stamp fades, is damage. Leave a tired edge visible, or say you sharpened it. Do not oil the knife into a blur for the photo.

From the journal