Wiper switch

[Yote]

Could someone please tell me what type switch this is and how to properly test it ? I would like to sell it here but want to make sure it works right first. It has three positions with the first activated by pushing.
Yote

 

[70dustah]

It looks like a 3 speed delay switch to me, but check on here for testing Welcome to Passion4Mopars - Because Mopars Are My Passion Too

 

[Passion4Mopars]

3488764 switch wiper 3 Spd

http://www.passion4mopars.com/Testing-and-Wiring-a-3-Speed-Switch_b_46.html

 

[Yote]

Thanks guys , couldn't make any sense from '72 manual. This info looks like it will work.
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[Passion4Mopars]

Maybe these photos will help? Not sure but I'll put em up here anyway