Photographer: Unknown. Annotations on envelope: 'Erbogachen'. Annotations on negative: N/A. Additional observations: Nizhne-Tunguskaia ekspeditsiia 1925 g.? S kraiu stoit chum v dali vidno bol'shoe dereviannoe zdanie, vozle nego gruppa liudei (shkola). Condition of original: polnaia. Date: not recorded. Keywords: Sotsialisticheskoe stroitel'stvo.