Partially rivet left hand aileron skin

Rivet the bottom side of the left hand aileron skin, a replacement delivered recently. Note that the counter-weight bar was able to be rivetted without the curved washers used in the right hand aileron, and no dips in the leading edge were visible. This aileron skin, a later version also has a few holes moved around, hear the bottom trailing edge. This skin also has a couple of additional holes on the leading edge. The ribs were matched drilled without issue.