The online community of knife collectors, A Knife Family Forged in Steel
they are not buck, not sure what company though. If you notice the made in japan on blades, I thought maybe Parker , but it would have an imprint. Wish I could help more, sorry.
If my recollection is close...
That has what they call a swing guard. The company's name was Valor. It was a US company, but the blades were manufactured in Japan. The SS was 440 (not sure of what grade). I think these were made back in the 80's.