Ever wonder what those "Plastic" bridges that Gibson used in the early 60's were all about? Most Gibson Flat Top acoustics built in 1962 and 1963 had this style of injection-moulded plastic bridge with adjustable ceramic insert, but perhaps you've not seen one of them up close and personal.
Here's Folkway's Mark Stutman showing this bridge set up in detail.
![](https://i.ytimg.com/vi/yvhcaVmvYwY/mqdefault.jpg)