Uh, nah brah...Don't know where you came up with $1,200. Cite the source. These aren't old and probably aren't all that valuable.
I'd say, barring some kind of revelation from Roadman, that these are likely worth around $50 or so. The "collectible tool" market is mostly non existent. Worth depends on utility and condition. These look useable and don't appear to have any blade damage. Comparable quality shears are around $50 or so.
Satoh Sangyo is a Japanese tool making company.
They make all kinds of tools
SalutationIn the forty years since the founding of Satoh Industries Co., Ltd.the world has changed in ways that could ne
sato-sangyo.com