The Case 88 4 blade Congress pattern is one of the most recognizable pocket knives ever produced by W.R. Case & Sons. Manufactured in variations such as the 5488 (stag handles) and 6488 (bone handles), the 88 pattern is one of the most collected knives out there. Its four blade configuration, typically consisting of two larger blades (spear & sheepfoot blade) and two smaller blades (pen and coping blade), made it an exceptionally attractive and versatile pocket knife.  The four blade congress pattern, with its slightly curved handles, has its origins in the early 1800’s in Sheffield, England.  Abraham Lincoln had a 4 blade Congress knife in his pocket the night he was shot in Ford’s Theater in 1865.

Case 5488 stag congress
CASE XX 1965 – 69 5488 Congress with stag handles

Case, among other American makers, began producing this pattern in the early 1900’s.  They became popular for those who appreciated a larger (measures 4 1/8″ closed) heavy-duty congress design. Today, vintage Case 5488 and 6488 knives are highly collectible, particularly examples with desirable handle materials (green bone, stag), harder to find features (long pulls), or earlier tang stamps (Case Tested or Case XX era).  Additional handle materials for 6488 knives include “rough black” (1940’s & 50’s) and jigged delrin (1970’s) handles.

CASE XX 6488 congress – note the middle knife has green bone handles and long pulls (1940’s)

Collectors also seek knives in excellent condition with original factory edges, making well-preserved examples increasingly difficult to find. Whether you’re looking to identify a Case 88 pattern or add one to your collection, the 5488 and 6488 remain classic examples of American pocket knife craftsmanship and continue to be favorites among Case knife enthusiasts.

Check out these Case 88 Pattern knives that are currently available on eBay I earn a commission when an item is purchased at no extra cost to you.

Case XX 1984 CCC Large 6488 Congress
eBay
$229.00
Case XX 1984 CCC Large 6488 Congress
W.R. Case &Sons 6488 Big 4 Blade Congress Knife Red Bone 10 Dot 1970 Unused
eBay
$1,450.00
W.R. Case &Sons 6488 Big 4 Blade Congress Knife Red Bone 10 Dot 1970 Unused
1940-64 Case 5488 Large Stag Congress - 4 BLADE - Vintage
eBay
$400.00
1940-64 Case 5488 Large Stag Congress - 4 BLADE - Vintage
Vintage Case XX USA 6488 1965-1969 no dot congress pocket knife red bone
eBay
$325.00
Vintage Case XX USA 6488 1965-1969 no dot congress pocket knife red bone
Case Classic Knife 6488 1991 Large Congress Green Bone
eBay
$425.00
Case Classic Knife 6488 1991 Large Congress Green Bone
Case XX Tested 2007 Congress Bright Yellow 6488SS Pocket Knife 08557 USA NOS
eBay
$249.95
Case XX Tested 2007 Congress Bright Yellow 6488SS Pocket Knife 08557 USA NOS
CASE XX USA Knife 6488 Congress 1976 Brown Bone - Lightly Used
eBay
$949.97
CASE XX USA Knife 6488 Congress 1976 Brown Bone - Lightly Used
1965-69 Case XX Stag Handle Congress 5488
eBay
$840.00
1965-69 Case XX Stag Handle Congress 5488
VINTAGE CASE XX USA 3 DOT 1977 BONE 4 BLADE CONGRESS KNIFE 6488 Super Rare
eBay
$400.00
VINTAGE CASE XX USA 3 DOT 1977 BONE 4 BLADE CONGRESS KNIFE 6488 Super Rare