Position for plumbing wires and sockets c.1925 - 1930

SPCAA/D/14/50/(1-6)

4 unsigned copies of superimposed plans showing levelling sockets including 2 diagrams showing positions of stations and points, undated and comparison of 2nd and 3rd complete series of levelling, dated 1st January 1925; 1 drawing showing positions of plumbing wires in north and south transept, undated and unsigned.

6 drawings

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