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 CAMILLUS NY USA TL-29 Electrician's Linemans 2 Blade Pocket Knife
eBay
$34.95
Vintage CAMILLUS NY USA TL-29 Electrician's Linemans 2 Blade Pocket Knife
Camillus TL-29 ELECTRICIAN LINEMAN SIGNALMAN Vintage Folding Knife
eBay
$9.99
Camillus TL-29 ELECTRICIAN LINEMAN SIGNALMAN Vintage Folding Knife
Vintage Camillus NY USA TL-29 3.7" Wood Linerlock Folding Military Pocket Knife
eBay
$39.95
Vintage Camillus NY USA TL-29 3.7" Wood Linerlock Folding Military Pocket Knife
Vintage KLEIN TOOLS -- Electrical Lineman's TL-29 -- Made in CHICAGO in 2008
eBay
$19.00
Vintage KLEIN TOOLS -- Electrical Lineman's TL-29 -- Made in CHICAGO in 2008
Camillus Pocket Knife Vintage TL 29 Electrician Knife Military Utility (157)
eBay
$18.00
Camillus Pocket Knife Vintage TL 29 Electrician Knife Military Utility (157)
-20%
Vintage 2 Blade CAMILLUS TL-29 Electrician Pocket Knife USA
eBay
$20.00 $25.00
Vintage 2 Blade CAMILLUS TL-29 Electrician Pocket Knife USA
Vintage Post WWII Camco USA TL29 Electrician Folding Pocket Knife Camillus NY
eBay
$17.50
Vintage Post WWII Camco USA TL29 Electrician Folding Pocket Knife Camillus NY
War Era Camillus TL-29 Folding Knife
eBay
$125.00
War Era Camillus TL-29 Folding Knife
Vintage WWII ULSTER TL-29 ELECTRICIANS KNIFE COCOBOLA WOOD HANDLES MILITARY CORP
eBay
$24.00
Vintage WWII ULSTER TL-29 ELECTRICIANS KNIFE COCOBOLA WOOD HANDLES MILITARY CORP
-30%
1960s Vintage 2 Blade CAMILLUS TL-29 Electrician Military Pocket Knife (L3)
eBay
$35.00 $50.00
1960s Vintage 2 Blade CAMILLUS TL-29 Electrician Military Pocket Knife (L3)
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
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