Photographer: Ostroumov. Annotations on envelope: ¹ 408 - Vidovoi negativ. Podkamennaya Tunguska 1926 g.. Annotations on negative: N/A. Additional observations: na negative ¹ 408 Podk. Tunguska 1926 g. PT.. Condition of original: srednee. Date: 1926. Keywords: tema?.