Hold-up clamps are marked with larger markings every 5°, 0-360° grade 1° edge, three engraved plates with stereographic pirates on either side, all with inscriptions, hours of worship. The so-called "30" star pointer net, shadow square and projected shield areas for triganometric calculations, the diagram of unequal hours, the MAGNIFICENT Astrolab with its needle that collects all plaques with flower-adorned nesih cartridges 7cm