I have an Ace Mitchell Tru-Pitch Gauge Kit that I am looking to sell. The kit has been used but comes with all 21 of the hole inserts and pitch ruler. The hole inserts range from 19/32 to 1 1/8. This is a great set if you want to check your pitches but don't want to spend a ton of money on the higher end pitch gauges. This is what I used when I first got into learning about ball pitches and layouts and wanted to check my drilled balls.
Here is a link to a picture of the kit. I do not have the cardboard with the labeled slots.
http://www.shop.innovativebowling.com/images/ace_mitchell_pitch_gauge_kit.JPGMake me an offer if you are interested.