What are these attached to my coil?

[sjp63]

Chrysler V8 (Bristol) - the coil has two small "pots" attached by a short wire to the +ve terminal and bolted to earth. Are these likely to be noise suppressors or capacitors like you find inside a distributor?

[sjp63]

It says:

Dublier type sv

1 uf

150v dc WKG

ignition device or suppressor????