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Felix, David H. scientific instrument collection

Astrolabes: "Eastern I"

Astrolabes: "Eastern II"

Astrolabes: "Eastern III"

Astrolabes: "Western I"

Astrolabes: "Western II"

Astrolabes: "Western III"

"Register of Astrolabes"

Musee de la Marine Paris Astrolabes

"2-xii-52"

"Vienna, N'berg"

"Sat 21 Sept., Mystic Seaport," "Long Island & Vermont etc, Sept 19-30, 1957"

"Oxford"

Notes on telescopes and astrolabes

Adler Planetarium postcards