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KITLV Demmeni J. Tulp De Haarlem The Karbouwengat Ngarai Sianok Kota Bukittinggi with Singgalang in the background .tif nl Het Karbouwengat met de Singgalang op de achtergrond Met onderschrift Karbouwengat met Singgalang op den achtergrond Sumatra en The Karbouwengat Ngarai Sianok Kota Bukittinggi with Singgalang in the background