The TL-29 is a popular pocket knife pattern that is usually associated with WWII.  They are plentiful and fun to collect in that several different manufacturers made them (Ulster, Camillus, Schrade, etc.) and a great amount of variations exist (handle materials, shields, stamps, etc.).  The TL-29 knife has its origins in World War One (WWI), originally called the Signal Corp knife.  These were a bit smaller than the ones that were produced during WWII and beyond and were often made by Empire Knife Co and Schrade Cut Co.  The TL-29 features two blades, most commonly a spear point blade with a nail nick pull and another blade with a wire scraper and screw driver tip.  The screw driver blade commonly has a liner lock for additional sturdiness.

Check out these vintage TL-29 knives that are currently available on eBay I appreciate any traffic from these links as I earn a commission when an item is purchased, at no extra cost to you. THANK YOU!!! – Jesse, oldpocketknives.com

Vintage IMPERIAL -- TL-29 Signal Corp. Lineman's Knife -- MADE 1956-1988
eBay
$21.00
Vintage IMPERIAL -- TL-29 Signal Corp. Lineman's Knife -- MADE 1956-1988
Vintage Kutmaster TL-29 Electrician Lineman Pocket Folder Knife Utica NY USA
eBay
$49.95
Vintage Kutmaster TL-29 Electrician Lineman Pocket Folder Knife Utica NY USA
Vintage CAMILLUS Electricians TL-29 Utility Knife -- Made 1960-1979 --
eBay
$14.87
Vintage CAMILLUS Electricians TL-29 Utility Knife -- Made 1960-1979 --
1970s Vintage 2 Blade CAMILLUS TL-29 *** Electrician Military Pocket Knife USA
eBay
$32.50
1970s Vintage 2 Blade CAMILLUS TL-29 *** Electrician Military Pocket Knife USA
1946 - 50 Camillus NY Electrician's 27 Pocket Knife post WWII Wood Handles TL-29
eBay
$29.95
1946 - 50 Camillus NY Electrician's 27 Pocket Knife post WWII Wood Handles TL-29
CAMILLUS CUTLERY CO TL-29 MILITARY WWII ELECTRICIANS KNIFE RARE TL-29 PLATE USA
eBay
$17.50
CAMILLUS CUTLERY CO TL-29 MILITARY WWII ELECTRICIANS KNIFE RARE TL-29 PLATE USA
Vintage Kutmaster Utility TL 29 Pocket Knife Wood Handle GUC
eBay
$26.99
Vintage Kutmaster Utility TL 29 Pocket Knife Wood Handle GUC
Vintage TL-29 Camillus Cutlery Co NY Electricians Folding Pocket Knife USA
eBay
$9.99
Vintage TL-29 Camillus Cutlery Co NY Electricians Folding Pocket Knife USA
Ulster TL-29 Electrician Linemans Knife WWII
eBay
$9.99
Ulster TL-29 Electrician Linemans Knife WWII
WWII PAL BLADE Co U.S. ARMY 1940s Issued Electricians Pocket Knife Scarce TL-29
eBay
$39.50
WWII PAL BLADE Co U.S. ARMY 1940s Issued Electricians Pocket Knife Scarce TL-29
Vintage Camillus NY USA TL-29 3.7" Wood Linerlock Folding Military Pocket Knife
eBay
$44.95
Vintage Camillus NY USA TL-29 3.7" Wood Linerlock Folding Military Pocket Knife
VINTAGE MONARCH JAPAN 2235 TL29 WOOD DEMOLITION LINESMAN POCKET KNIFE KNIVES VG
eBay
$34.00
VINTAGE MONARCH JAPAN 2235 TL29 WOOD DEMOLITION LINESMAN POCKET KNIFE KNIVES VG