1960s vintage roller hot skates with aluminum case

1960s vintage roller skates with aluminum case, the case is all aluminum it has scuffs and scratches and light rust to the latches but they still work but are rusty and hard to work .as can be expected for a 50 year old case has some tarnishing in places I wipe it off could use a little more cleaning.. The skates are black and are from the Chicago roller skate co. they are in decent used condition there is no size on them, they measure 11 " long overall if hot that helps.