The form
2 bars carry two chords. The transcription writes both chords' notes together without saying which note belongs to which, so those bars are printed and not drawn — a keyboard guessed from an ambiguous line would show a chord nobody plays.
The hands
Left hand then right, as the source writes them. A pianist's voicing routinely carries a colour the chord symbol does not spell — a flat ninth over a dominant, a ninth on top of a seventh chord — so the notes printed under each keyboard are what is actually played, rather than what the symbol alone would predict.
F9
bar 1
LH F2 C3RH G3 A3 Eb4
Add 9th, tight spacing
F9
bar 2 · bar 3 · bar 7 · bar 11
LH F2 C3RH G3 A3 Eb4
F13
bar 4
LH F2 C3RH A3 D4 Eb4
Add 13th
Bb9
bar 5 · bar 6
LH Bb2 F3RH C4 D4 Ab4
Gm7
bar 9
LH G2 D3RH Bb3 F4 A4
C13
bar 10
LH C3 G3RH E4 A4 Bb4