Which jews harp is best for a beginner?

V.Potkin's Tuned Komus

V.Potkin's Tuned Komus
Altay Komuses /
Oberton Pro Lab measurements:
Gaps: 150-250 µm (?)
Base frequency: 65-95 Hz (?)
Reed hardness: 50-60 gf (?)
Frame hardness: 400-700 gf (?)
Reed size: 60x15-20 mm
Overall dimensions: 67x25x5 mm (?)
Archived model (?)
Vladimir Potkin's standard komus, tuned to one of the Do-Re-Mi-Fa notes.