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Source Image: PR205_1_16_17 of Column of Trajan

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Description

Close-up of the interior surface of a window.

Monument
Column of Trajan 
Monument Type
Architecture 
Material(s)
Luna Marble (Archaeometric identification)  
Date
circa ad 113 
Keywords
Window  
Collections
Column of Trajan, Rome  

Location

Current Location
Rome 

Evidence for working practices

1. - Toolmarks

Process
Flattening
Tool
Point
Method
Angle: Steep (60-70°)
Force: Medium
Description
Marks of the point chisel can be seen on the interior of the staircase to the right of this image.

1. - Toolmarks

Process
Flattening
Tool
Flat Chisel
Method
Angle: Shallow (40-50°)
Force: Medium
Description
The flat chisel is used closer to the opening of the window to smooth the surface.

2. Toolmarks

Process
Flattening
Tool
Roundel
Method
Angle: Shallow (40-50°)
Force: Medium
Description
A round-headed chisel is used to shape more precisely the flat side of the window, visible in the middle of this image.

Notes

This image presents a cross-section of a window with the opening to the left and the interior of the column to the right. In plan the windows are trapezoidal in form and as this image shows the different phases of working are revealed as one moves from right to left and the surface gets smoother.

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