Savora Swept-Wing 125 4 blade with carbon blades. If purchased in the 80's those were probably blades made by American Safety Razor. They were good ones!! The blades MLBowhunting is sending you will work fine.
I've got them also and need blades. I started shooting them in 1983, and still haven't found a sharper blade than the old carbon blades. Man they put blood on the ground. How do I get blades?