I based the image on the style of dog tags made after the 1970s. According to the official website of the USMC (https://bit.ly/3qfGsJh), "...the notched style of tag...only existed because of the ...

If you collected cards in the 1970s, there's a good chance your collection included classics like the 1975 Herbie Washington pinch-runner card or the 1976 Oscar Gamble card with the giant Afro.