TR33 Nickel Plated Key Blanks.  Same as ILCO X137.  Fits some Toyota vehicles and others:
Case
Various models, including mini excavators, with keys stamp TAK (Key must be shortened).
Gehl
Various models, including truck loaders (Key must be shortened).
Hino
Various 1980-1989 models using key codes between:
K0001-K4570
Kubota
Various models, including mini excavators, with keys stamp S8077 (Key must be shortened).
New Holland
Various models, including mini excavators, with keys stamp TAK (Key must be shortened).
Takeuchi
Various models, including mini excavators, with keys stamp TAK (Key must be shortened).
Toyota
4 Runner,1984-1989
Celica,1984-1989
Corolla, 1983-1989
Land Cruiser, 1983-1990
MR2, 1985-1990
Pickup, 1981-1988
Supra, 1985-1989
Tercel, 1983-1990
Various 1969-1990 models using key codes between:
D5001-D6020
K001-K400
K1511-K1910
K2221-K2620
K3731-K4570
K5001-K6368
R401-R800
R1112-R1510
R2621-R3020
R3331-R3730
R5001-R6925
R8001-R9368
S5951-S6350
S7061-S7460
S8001-S8104
S8171-S8570
S9281-S9680
Weatherguard
Various products, including toolbox locks, using key codes between:
K750-K799
Same as:
Axxess 30
Cole TO33
Curtis TR-33
Dominion TA29
ESP TR33
Ilco X137
Ilco EZ TR33
Jet TR33
JMA TOYO-12
Orion MS11
Silca MIT2
Star LTO1
Strattec 321723
Taylor X137