Casgliadau Arlein

Handwritten blueprint on off-white paper. Two page test report with the title: 'Make-up water for air pump / Full load test, Febr. 17th 1924.' Contained loose within a maroon hardback file with all other documents under accession number 85.184I/4. This document has been wrongly labeled as 87.201I/4. Documents 85.184I/4 (74) - 85.184I/4 (78) are attatched together with a paperclip.