AutoMeter Lunar Series Boost/Vac Gauge
 

In great shape. Gives a nice subtle green glow. Part #4103.
You will need to add some wiring and supply your own feed line as it is a mechanical gauge. (So basically this is just the gauge and the fitting that screws on the back to attach the feed to. :) )
Looks just like this:
http://www.mooreparts.com/mm5/graphi...TER-LU4103.jpg

eBay doesn't have them, most online stores are $85-$110 plus shipping new.

$50/Shipped