Consuetudo
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RUISEN'S Quadrata Rotunda Speculorum Ornamenta 19304
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RUISEN'S Ornamenta Specillorum Rotunda cum Laminis Scintillantibus 19305
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RUISEN'S Polygonal Sparkling Plate Speculorum Ornamenta 19256
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RUISEN'S Laminae Polygonales Specillorum Ornamenta 19161
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RUISEN'S Ornamenta Specillorum Laminarum Personalisata 19156
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RUISEN'S Quadratae Laminae Specillorum Ornamenta 19114
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RUISEN'S Specillorum Ornamenta Rotunda Antiqua Consuetudinaria 19180
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RUISEN Specilla plana contra lucem caeruleam, forma singulari facta, 19191
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Pocula rotunda et pruina RUISEN facta, ad usum aptata, 19279
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RUISEN'S Specula Oculariorum Quadrata Laminae Pruinosae 19283T
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RUISEN'S Specula Ocularia Cat Eye Laminata Pruinosa Adhibita 19291T
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RUISEN'S Specula Oculariorum Rotundorum cum Laminis Confectis et Patchwork 19339T