"Diamond 6-Lever Having 3 Arm Levers"

Exploded View

Original Key (Early Trademark)

There are 12 key changes.
#1	#2	#3	#4	#5	#6
#7	#8	#9	#10	#11	#12

Early Trademark Stamped on the Obverse of the Shackle

Early Patent Applied For Stamped on the Reverse of the Shackle

Later Trademark Stamped on the Obverse of the Shackle

Later Patent Date Stamped on the Reverse of the Shackle