Pete Townshend's Strap Buttons/Locks?

[jalbertochavez]

I couldn't put up a picture of his guitar, but for those of you familiar with Pete Townshend's custom Les Pauls, does anyone know where I can get strap buttons/locks like the ones he had on them?  :help:

 

[jackthehack]

Think those are just the Schaller strap lock system; available on the Warmoth site