1909-09-02 Stereoscopic negative, gelatin and silver on glass, 4,3 x 10,5 cm PT-AMLSB-JMS-000114 Inscriptions ingraved on the negative: “324. Marçal da Silva [signature]”. Inscriptions on the record book Photonegativos. Catálogo n.º 1: “N.º 324; Data 2 Set.º 1909; Hora 12 1/4; Luz Sol; Objectiva Vérascope descent.; Diaph. 8; Suporte Agfa Chromo Isolar; Assumpto Paço de Sousa. Mosteiro. Claustro; Expos. 1/9’’; Revelação Ducancel Pyro Acetona”. [Number 324; Date 2 September 1909; Hour 12 1/4; Light Sun; Lens Vérascope off-center; Diaphragm 8; Medium Agfa Chromo Isolar; Subject matter Paço de Sousa. Monastery. Cloister; Exposure 1/9’’; Development Ducancel Pyro Acetone]. Related documents: Stereoscopic slide, gelatin and silver on glass, 4,3 x 10,5 cm and print on direct collodion or gelatin paper, 4,5 x 10,8 cm.

1924-08-29 Stereoscopic slide, gelatin and silver on glass, 4,3 x 10,5 cm PT-AMLSB-JMS-002811 Ink inscriptions on the slide: “Guimarães. Rua de S. Domingos. 29-8-1924. Marçal da Silva [signature]. N.º 1382”. [Guimarães. São Domingos street. 29-8-1924. Marçal da Silva [signature]. Number 1382]. Inscriptions on the record book Photonegativos. Catálogo n.º 2: “N.º 1382; Data 29 Agosto 1924; Hora 15; Luz Sol; Objectiva Vérascope; Diaph. 8; Suporte Agfa Chromo Isorapid; Assumpto Guimarães. Rua de S. Domingos; exp. 1/48’’; Revelação Ducancel Pyro acetona; Observ. Farmer-Namias (?)”. [Number 1382; Date 29 August 1924; Hour 15; Light Sun; Lens Vérascope; Diaphragm 8; Medium Agfa Chromo Isorapid; Subject matter Guimarães. St. Domingos street; Exposure 1/48’’; Development Ducancel Pyro Acetone; Notes Farmer-Namias (?)]. Related documents: stereoscopic negative, gelatin and silver on glass, 4,3 x 10,5 cm and print on direct collodion or gelatin paper, 4,5 x 10,8 cm. The slide was on chassis 34 (position21), inside the closet of the author’s taxiphote.

1922-03-05 Stereoscopic negative, gelatin and silver on glass, 4,3 x 10,5 cm PT-AMLSB-JMS-000744 Pencil and ingraved inscriptios on the negative: “1228. Marçal da Silva [signature]”. Inscriptions on the record book Photonegativos. Catálogo n.º 2: “N.º 1228; Data 5 Março 1922; Hora 12 3/4; Luz Sol; Objectiva Vérascope; Diaph. 16; Suporte Imperial Ortho N.F. a.H.; Assumpto Guimarães. Penha. S.to Elias e S. Pedro; exp. 16’; Revelação Watkins Termo Metol-Quinol”. [Number 1228; Date 5 March 1922; Hour 12 3/4; Light Sun; Lens Vérascope; Diaphragm 16; Medium Imperial Ortho N.F. a.H.; Subject matter Guimarães. Penha. St. Elias and St. Pedro; Exposure 16’; Development Watkins Termo Metol-Quinol]. Related documents: stereoscopic slide, gelatin and silver on glass, 4,3 x 10,5 cm and print on direct collodion or gelatin paper, 4,5 x 10,8 cm.