Phenolic E26 lampholder half thread and lock screw

E12 bakelite lampholder

E12 light bulb sockets smooth skirt & push in terminal

Phenolic E12 light sockets smooth skirt

Bakelite E12 lamp holder smooth skirt and Push-in terminal

Bakelite E12 light bulb socket smooth skirt & Push-in terminal

Bakelite E26 bulb sockets smooth skirt and lock screw

Bakelite E26 lamp socket half thread and lock screw

Bakelite E26 lamp base half thread and lock screw

Bakelite E26 lamp holder smooth skirt and lock screw

E12 lamp base full thread lock screw

Bakelite e12 lamp socket half thread and lock screw