John Irwin Slide Collection

A 100-inch dish at Villa Elisa
View of the east gardens at the Royal Greenwich Observatory
View of Hamburg Observatory
View of the Rechen Institute
View of Cinchado Summit
View of Cinchado Summit
View of the Leiden Observatory
Train station near Royal Observatory, Cape of Good Hope
Airy transit circle 0 degrees longitude at Royal Observatory, Cape of Good Hope
View of Royal Observatory, Cape of Good Hope timeball
View of the Royal Observatory, Cape of Good Hope
Mclean telescope at the Royal Observatory, Cape of Good Hope
View of Palomar Observatory
150' tower at Mount Wilson Observatory
Bernhard Schmidt's grave near Hamburg Observatory
View of the 60-inch telescope at Boyden Station located near Bloemfontein, South Africa
View of Union Observatory near Johannesburg, South Africa
Canopsus St. near Radcliffe Observatory
View of the 74-inch telescope at the Radcliffe Observatory
"Lick" double 20 telescope at Leoncio, Argentina

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