When dating or trying to establish a possible range for pants, you may want to pay attention to how the belt loops are affixed; both as a function of number and location. For example do the pants in the image that you are comparing yours to with feature:
1. A certain number of loops and then larger tunnels on the side or back.
2. A loop located in the center of where the pants are joined at the button line.
3. A pair of loops close to the center, then spaced loops with out tunnels.
My point in all this pants have physical traits that have changed over time just as can be found on jerseys. These can also vary my manufacturer as well.
Dave Grob
DaveGrob1@aol.com