12 SCHOOL MATE 1960s Drawing Sets Made in Hong Kong

Remember when you had to have a pencil case to fit in
not just your ruler but your set square and protractor ?
Buy these 12 sets and give one to every child you knew and
then stand back and smile wryly as they try to work out what
these strange things are...
Made in Hong Kong, probably in the 1960s.
Some of them have slightly grubby packaging.