I am having no luck with the middle one
I think I see
London June twenty nine
1837Not found (
in red)
Thos ReidEngland Sir (?)
A. B. ...................Bart Thurnham
(get absolutely no newspaper hits for that so I don't think it is correct)
Stoneham. and then the signature bottom left I assume is that of the person giving the frank? Is that how it worked?
I've tried searching newspapers for "Bart" in Stoneham. I got a bit excited about a HEATHCOTE but he was Wm not A.B. And it seems Stoneham might not be correct anyway doesn't it.