Objects
Beijing observatory: astronomic instruments, the first quarter of the 20th c/
Beijing observatory: astronomic instruments, the first quarter of the 20th c/
Number
МАЭ № 3651-123
Title
Beijing observatory: astronomic instruments
Ethnicity
Chinese
Date
the first quarter of the 20th c/
Collectors-person
Material
photosensitive layer, paper
Corpus
Photo Collection