1. Photo 1390/1(20) Reference (shelfmark): Photo 1390/1(20) Title: Alter of Heaven, in the Temple of Heaven, on which the Emperor sacrifices once a year and personally intercedes with the God of Heaven for the prosperity of the Empire. One of his titles is ''Son of Heaven.''. Photographer: Unknown. Collection Area: Visual Arts Languages: English Date Range: 1900-1901 Extent: 1 item