1) Hills in South Africa 2) Keystone bunch of film 3) Keystone bunglers 4) Keystone characters 5) Keystone comics 6) Keystone crew 7) Keystone cutups 8) Keystone force 9) Keystone group 10) Keystone karakters 11) Keystone krew 12) Keystone lawmen 13) Keystone Studios crew 14) Sennett group 15) Sennett lawmen 
KOPS is an abbreviation for Kilo Operations Per Second