DIY Dave's lock collection
from left to right---Schlage Kryptonite padlock with Primus cylinder; Large format C123 core; C123 rim cylinder; Master padlock with Schlage Everest SFIC; C123 KIK cylinder
Master padlocks with Kaba Peaks SFIC cores, 1 old style 1 new style with face that sticks out; Best padlock with best F IC core; Medeco KIK and Mortise cylinder keyed
alike; American 3600 series with Medeco cylinder
Sargent LFIC & US lock keyway kik cylinder
Basic locks
tubular padlock and puck lock
Medeco keymark SFIC in master weatherproof padlock