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![LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’](https://64.media.tumblr.com/450ac67919bcb5abfad4e924e9611197/tumblr_pkg8p4OsTv1uubqfso6_1280.jpg "LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’")
![LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’](https://64.media.tumblr.com/52f0eefbc9f2731c340908d6065d99d3/tumblr_pkg8p4OsTv1uubqfso3_1280.jpg "LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’")
![LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’](https://64.media.tumblr.com/0dfe384c0c848c1621da6a3a625d4bb4/tumblr_pkg8p4OsTv1uubqfso5_1280.jpg "LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’")
![LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’](https://64.media.tumblr.com/6d5948cb3a64f631bcb2d6b95d0f8b8b/tumblr_pkg8p4OsTv1uubqfso1_1280.jpg "LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’")
![LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’](https://64.media.tumblr.com/3416a5f52221be4e38a1e2364ac47695/tumblr_pkg8p4OsTv1uubqfso4_1280.jpg "LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’")
![LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’](https://64.media.tumblr.com/cf1aafdb03bf22231b311a1e12dc0f75/tumblr_pkg8p4OsTv1uubqfso7_1280.jpg "LJS 497 - Canones vel op[er]ationes in op[er]ando quadranteHow does the astrolabe work? If you don’")
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