Third molar on that one side does not look as worn as the side with the missing tooth. At least 3.5. If you have not already watched it, this may help you https://www.youtube.com/watch?v=35Xc9hzpaFE
Plenty enough wear on both M2s to go 4.5, so I'll say 4.5+. As we all know, the TR&W method has a higher chance of underaging with each passing year after 2.5. Congrats on your buck.
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