2 "Ficheiro:Concrete_pouring_0020.jpg".

Ficheiro:Concrete pouring 0020.jpg

DescriptionConcrete pouring 0020.jpg The pouring of a concrete floor for a commercial building. Date 24 December 2004 Source Own work Author en:User:Pollinator...

Ficheiro:Contract No. 112, Spillway at Shaft 2 of Quabbin Aqueduct, Holden, pouring concrete, looking southerly from Sta. 240 degrees, spillway channel at Shaft 2, Holden, Mass., Oct. 28, 19 - DPLA - 3059db060bdfb24075ffcdf0772c2a60.jpg

Contract No. 112, Spillway at Shaft 2 of Quabbin Aqueduct, Holden, pouring concrete, looking southerly from Sta. 240 degrees, spillway channel at Shaft...

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