Blueprint plan showing a cross section view of the Festival Hall. The architect is Arthur Page Brown. Drawn at a scale of 8 feet to 1 inch.

Blueprint design for a fence, California Midwinter Exposition. Drawn by M M O'Shaughnessy, at a scale of 2 feet to 1 inch.

Blueprint plan showing details of the trusses required of the Mechanical Arts Building. The Architect is Edward Swain, and Engineer is A D Ottewell. Varying scales applied to the various diagrams on this blueprint.

Blueprint plan showing details of the main truss for the Manufactures and Liberal Arts Building. Various drawings are included on the blueprint including a diagram of the trusses, the lower chord of the ridge truss, and the elevation of the ridge truss. The Architect is Arthur Page Brown. Varying scales applied to the various diagrams on this blueprint.

Blueprint plan showing a diagram of wind bracing for the Festival Hall. There is also a section of the drawing dedicated to framing of arches etc at sides of auditorium. The architect is Arthur Page Brown. Both are drawn at a scale of 8 feet to 1 inch.

File of 19th and 20th century Ordnance Survey maps of Aran. Although the items in this file are undated, it is probable these are the early building blocks of Robinson's 1975 map of the Aran Islands. The OS maps have been cut into fragments and heavily annotated, with the Irish language version of each placename written in, local features drawn, corrections and updates added, and some additional features hand-drawn using coloured ink.

There are 7 cut outs in total. Two from OS Map Sheet 110, one from Sheet 111, and four from Sheet 119. These are taken from the 1966 edition of the 6 inch OS map.

Also filed with these maps are photocopies from other reference maps, with annotations. These seem likely to have come later, when Robinson went on to update his mapping. One is a hand-drawn sketch on tracing paper entitled 'Aran areas of small fields 1cm²'.

6pp of Robinson's notes with calculations on the fields in Árainn, giving average perimeters, grids and calculations.

Four copies of sections of the 1839 OS map showing Baile na Sean.

Newspaper clipping dated 7 November 1992 of a 16th century map of Ireland by Paolo Forlani soon to be auctioned.

Sheets 113 and 122 from the Geological Survey of Ireland, showing the Aran Islands and Inisheer at the scale of one inch to a mile. (Published Oct 1862 and Mar 1869).

Sheet 113 of the OS 1 inch map of Aran Islands showing Inishmaan and Inishmore. Robinson's calculations drawn in pencil.

Blueprint plan showing the front elevation of the Mechanical Arts Building. The Architect is Edward Swain. Drawn at a scale of 8 feet to 1 inch.

Blueprint showing the side elevation of the Administration Building. The Architect is Arthur Page Brown. Drawn at a scale of 1/4 inch to 1 foot.

Blueprint map showing the entrance to Humboldt Bay. Surveyed by the USA's Corps of Engineers to accompany an annual report. Drawn at a scale of 600 feet to 1 inch.

'The Family Atlas, containing 80 maps, constructed by eminent geographers, and engraved on steel, under the superintendence of the Society for the Diffusion of Useful Knowledge', a gift to Tim Robinson from Dr. Philip Robinson.