Which jaw harp is best for a beginner?

"Vargan" Tutorial Book (Russian) - V.Markov, I.Bogatirova (Book, Rus, 2019)

"Vargan" Tutorial Book (Russian) - V.Markov, I.Bogatirova (Book, Rus, 2019) ' . L('index_recommended_1') . '
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Oberton Pro Lab measurements:
Overall dimensions: 210x150x15 mm (?)
200-pages book with a hard cover (in Russian).