d=16
Y#187

25 1987-1998.

Aluminum-Bronze

UNC

0.1

 d=18
Y#203

50 1987-1998.

Aluminum-Bronze

UNC

0.1

d=20
Y#183

1 1995.

Copper-Nickel

UNC

0.1

 
d=20
Y#330

1 1996.

Copper-Nickel

UNC

0.035

 
d=21
Y#307

2 1995.

Copper-Nickel

UNC

0.65

d=24
Y#219

5 1995.

Copper-Nickel

UNC

0.5

d=26
Y#223

10 1995.

Aluminum-Bronze,Steel

UNC

3