Which original NFL teams wore Sand-Knit 1940-1980?

[both-teams-played-hard]

I have these pics to contribute to the thread. Wilson tagging from a 1968 Houston Oilers durene. Sand Knit tagging from a 1970 Oakland Raiders jersey

Thanks for the photos, Dewey. This is why this stuff is confusing. The Raiders jersey surely could have been used in 1970. However, the Sand-Knit tag was originally manufactured in the late 50s to the very early 60s. Recycled or "carry-over" styles should always be considered, especially football.