Title: Meccanismi della fresa a tamburo in uso nel cantiere della metropolitana a Milano

Original title: Drum digger shield for north drive of southbound tunnel, showing gear boxes installed. The temporary spider and trammel used during erection can also be seen

Description: Lo scatto documenta il cilindro della fresa a tamburo, mettendo in evidenza gli ingranaggi. Si notano due operai all'interno del cilindro

Inscription: [1]- "TC/12/1. Drum digger shield for north drive of southbound tunnel, showing gear boxes installed. The temporary spider and trammel used during erection can also be seen"

Inscription: [2]- "Brooks photographers. 73 St. Mark's Raod, Bush Hill Park, Enfeld. telephone, Enfeld 0134"

Inscription: [3]- "Copyright London transport executive"

Collection: Luigi Zaretti Collection

Client: Zaretti, Luigi

Name of creator: Brooks photographers (Attributed to)

Producer name: Brooks photographers

Subjects Sbt: Macchine operatrici, Gallerie, Lavori stradali

Subjects Getty AAT: Machine tools, Tunnels, Public works

Classification: 625.400

Reference: http://metromilano.biblio.arc.usi.ch/

Document type: Photographic material

Specific document definition: Photograph

Original technology: Analog

Material: Paper

Colour: Black-and-white

Polarity: Positive

Material type: Opaque

Process and technique: Gelatin silver process

Orientation and form: Landscape

Work dimensions: 18x24 cm