Riveting the aft fuselage skins^1h

Some amount of riveting of the aft skins other the last... well... few weeks.

I am also waiting for the F-78A the backrest brace replacement. The second one. It's such a simple part, but I somehow managed to ruin two of them. The first one I did not offset by 1/8", as told in the plans. The second one wasn't well-centered (not too bad, but I decided to replace it anyway).