On the picture above you can see a time window on knives 1976-1980. At this time the economy made knives had a backside tang stamp with economy on. On the picture are some production variations but usually
the variations can be found on the main side stamp. There are a few differences on the hot stamp emblem but this i have talked much about before. Notice the screwdriver without the scraper tool, also notice the saw and scissors. The corkscrew is better at
this time as well.
The picture is just made to be a window in time.