1911-07-23
Stereoscopic negative, gelatin and silver on glass, 4,3 x 10,5 cm
PT-AMLSB-JMS-000226

Inscriptions ingraved on the negative: “532. Marçal da Silva [signature]”.
Inscriptions on the record book Photonegativos. Catálogo n.º 1: “N.º 532; Data 23 Julho 1911; Hora 13 3/4; Luz Sol; Objectiva Vérascope; Diaph. 8; Suporte Agfa Chromo Isolar; Assumpto Loures. Feira. Louça; exp. 1/125’’; Revelação Ducancel Pyro acetona”.
[Number 532; Date 23 July 1911; Hour 13 3/4; Light Sun; Lens Vérascope; Diaphragm 8; Medium Agfa Chromo Isolar; Subject matter Loures. Fair. Pottery; Exposure 1/125’’; 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.

The negative glass was broken, so it was intervened in 2016 when it entered the Municipal Archive of Lisbon – Photographic.
The restoration process included cleaning the glass support, made with cotton and a solution of destilled water and ethyl alcohol in equal parts, as well as cleaning the emulsion with a puff pear. The fragments were bonded with gelatin, stabilizing the broken glass support. Neutral paper frame was applied over the emulsion and sealed with a backing glass and neutral adhesive tape. The negative was packed in a numbered conservation package.

1911-07-23
Stereoscopic negative, gelatin and silver on glass, 4,3 x 10,5 cm
PT-AMLSB-JMS-000227

Inscriptions ingraved on the negative: “533. Marçal da Silva [signature]”.
Inscriptions on the record book Photonegativos. Catálogo n.º 1: “N.º 533; Data 23 Julho 1911; Hora 13 3/4; Luz Sol; Objectiva Vérascope; Diaph. 8; Suporte Agfa Chromo Isolar; Assumpto Loures. Feira. Peneiros; exp. 1/125’’; Revelação Ducancel Pyro acetona”.
[Number 533; Date 23 July 1911; Hour 13 3/4; Light Sun; Lens Vérascope; Diaphragm 8; Medium Agfa Chromo Isolar; Subject matter Loures. Fair. Sieves; Exposure 1/125’’; 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.

1910-06-05
Stereoscopic slide, gelatin and silver on glass, 4,3 x 10,5 cmPT-AMLSB-JMS-002154

Ink inscriptions on the slide: “Campo G.de. Concurso leiteiro. Prof. Feijão e Agueda Ferreira. 5-6-1910. Marçal da Silva [signature]. N.º 368”.
[Campo G.de. Dairy milk contest. Prof. Feijão and Agueda Ferreira. 5-6-1910. Marçal da Silva [signature]. Number 368].
Inscriptions on the record book Photonegativos. Catálogo n.º 1: “N.º 368; Data 5 Junho 1910; Hora 13 1/2; Luz Sol N. brancas; Objectiva Vérascope B.te II; Diaph. 8; Suporte Agfa Chromo Isolar; Assumpto Campo Grande. Concurso leiteiro. Prof. Feijão e Agueda Ferreira; exp. 1/80’’; Revelação Ducancel Pyro acetona; obs. Ref. Agfa”.
[Number 368; Date 5 June 1910; Hour 13 1/2; Light Sun. White clouds; Lens Vérascope B.te II; Diaphragm 8; Medium Agfa Chromo Isolar; Subject matter Campo Grande. Dairy milk contest. Professor Feijão and Agueda Ferreira; Exposure 1/80’’; Development Ducancel Pyro Acetone; Notes Ref. Agfa].

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.

Image published in: Jorge Marçal da Silva: cem fotografias de Portugal há cem anos / Manuel Mendes Silva. – [Lisboa] : Núcleo de História de Medicina da Ordem dos Médicos, 2013. – 141 p. ISBN 978-989-98587-0-1.