The 5OT Bruin Lockback family was expanded over the years in an effort to increase sales of the pattern.
1986 - 1998 - 5OT Bruin Lockback
1990 - 2002 - 5OTG Green Bruin Lockback
2002 - 2003 - 55OTG Blade Lifter Linerlock
In 1990, Schrade began producing and shipping the 5OTG "Green Bruin" Lockback on the 5OT frame. It also was 4" closed, had a 2 7/8" drop point blade, but with brass front bolsters and pins, and green sawcut delrin handle with brass "Old Timer" shield. Blades prior to 1996 were carbon steel. It was first listed in the 1991 catalog with a MSRP of $36.95, and last listed in the 2002 catalog for MSRP $43.95.
In 1996, a running change was made in the 5OT and 5OTG to add the thong hole, so pre 1996 production has the two stock rear cover pins, post 1995 has the lined thong hole with the pins deleted.
In 2002, another variant, the 55OTG linerlock was introduced. It had no real name other than the "Blade Lifter". It was listed at a MSRP of $43.95. It was only produced for two years, discontinued after the 2003 catalog. Made on the frame of the 5OTG "Green Bruin" linerlock, it was 4" closed, had a 2 7/8" drop point blade with an added thumbstud, brass front bolsters and pins, and green sawcut delrin handle with brass "Old Timer" shield. Like the 5OTG, it also had a brass lined thong hole, but retained an upper cover pin.
A smaller version, the 53OTG introduced at the same time (and discontinued at the same time) was 3" closed and had a 2 3/16 drop point blade with the thumbstud.
In 2003, the 55OTG was called the "Bruin EXT" and the 53OTG was called the "Bearhead EXT".
Good news for those who like stainless Old Timers, the 5OT series all had Schrade+ stainless blades, with the exception of the pre-1996 5OTG which was initially listed as having a high carbon blade.
Several other slipjoint, lockback, and fixed blades had been made over the years with green sawcut delrin and brass bolsters, liners, pins and shields, most notably the factory special orders for the Skoal tobacco promotion. I must admit, the green and brass is a handsome combination.
Both the 53OTG and the 55OTG, having been only produced for two years should find their place among future scarce Schrade collectables. Right now, because of the relatively short time since they were discontinued, and the market glut of factory stock being dispersed, they represent one of the better values out there.