We've got them on anything big/expensive enough to be considered an accounted capital expense at work. Basically a tag with an ownership stamp (eg property of company blah) and a serial number for accounting to keep track of where the item is and when it enters and leaves service. Ours are usually stamped with a reminder to turn the tag in if the asset is scrapped or not to scrap the asset without notifying accountingWhat's an asset tag?
Looks like what they were using in the video "How its made Dial Indicators"
How its made
at about time 4:49.