https://www.rugbyleagueproject.org/seasons/nswrfl-1970/round-20/canterbury-vs-easts/summary.html
CB: I can see 1-13 in the video meaning more likely than not, late replacement Les Perry wore number 2 (see 0:39 + 1:02).
ES: I can see 1-13
https://www.nrl.com/news/2026/07/22/bulldogs-v-roosters---round-20-1970/