This is a 1960's vintage pair of "Jet Set" metal roller skates that are adjustable by the wing nut on the bottom and sliding bigger or smaller.

Also the front red shoe holders are on a spring loaded mechanism and can be adjusted larger or smaller.

These skates are made from all metal with red clear rubber wheels.

There is a thick leather ankle strap to hold them on.

On one there is a screwed on rubber brake in the front.  

This brake can be put on either the right or left side.

On the front top sole plate it reads, "Globe Skate Corp, Menomonee Falls, Wis USA, Pat No. 3.279.808".

Please see all the pictures for up close views from all sides...