Casgliadau Arlein

Three pages. The first page is handwritten in pencil on off-white, blue ruled paper. The other two pages are typed in purple ink on off-white paper. Some details are handwritten in pencil. Windsor Colliery unit costs. All three pages are dated 18/8/25. 83.184I/70 (32-37) are pinned together. Loose within a beige/light brown file with all other documents with the accession number 83.184I/70. The file is labelled 'Steam and Electric Collieries'.