What is this old blue point/ snap on tool

[sumner52000]

Need help identifying this tool. My only guess would be for valve springs? I do plan to sell it but want to know what it is. It came from jake king estate sale last year. Jake was mechanic for sox and Martin race team.

 

[Strouty]

Something to do with valve lash?

 

[wornoutoldman]

have a side view?

 

[sumner52000]

have a side view?

Another pic

 

[Dirty Diesels]

Valve spring compressor!

 

[lbgradwell]

Valve spring compressor!

...for mid-1930s six-cylinder Chevvies...

 

[sumner52000]

Thanks for the help. Here in 1936 snap on catalog.