Cleveland Institute of Technology Electrical Engineering Scale made by Pickett. This belonged to my late grandfather, an engineer who purchased or received this from a friend. It’s been in the family since then for decades. The scale is in excellent shape, the tracks look good but could probably use a cleaning or some lubricant, but I’ll leave that to the buyer if they feel that is necessary. The leather holster is in good shape as well, with age related wear. The holster was definitely worn on the belt as intended. Original owner placed a name label on the holster, which has left a remnant mark. Pretty cool item, I hope to find it a great new home. I am not an engineer and don’t know much about this stuff, but I will answer all questions the best I can. Thanks!