d=18
KM#11a

1 1979.

Aluminum

XF UNC

0.25/ 0.45

d=22
KM#12.1b

5 1988.

Copper Plated Steel

XF UNC

0.2/ 0.5

d=16
KM#13a

10 1989.

Nickel Plated Steel

VF XF UNC

0.15/ 0.25/ 0.5

d=20
KM#14a

25 1989.

Nickel Plated Steel

F VF XF UNC

0.2/ 0.3/ 0.6/ 1.2

d=23
KM#23

100 1989.

Copper-Nickel

VF XF UNC

0.5/ 0.85/ 2

d=27
KM#24

250 1989.

Copper-Nickel

VF XF UNC

0.75/ 1.5/ 3