Indexer-Broken Spring

[Star73]

I have had/used 2 or 3 of these indexers over the yrs but have no paper on them. The unit operates by meaans of an arm pushing a slide w/ a "U" shaped end against a case moving it to the next position(Prime). The movement is accomplished by a short upstroke of the operating handle.

A small coil spring secures to the above U shaped part. This coil spring is broken... Can anyone provide info on this spring?? A supplier? Instructions to make one? 

Thanks,
Ron

[fc60]

Greetings,

A photo would help greatly.

Cheers,

Dave