The G flat augmented seventh chord is a 4-note chord consisting of the notes Gb, Bb, D and F.
You can see these notes highlighted in the interactive piano chart below.
The chord itself is often abbreviated as Gbmaj7#5.
Interactive piano diagram for the G flat augmented seventh chord
Chords that are a subset of Gbmaj7#5. These contain less notes but all of them are included in Gbmaj7#5.