| Description | Mints and Mint Engines (25 items).
Plans of the mint, mint machinery etc.
Plan and section of die shops etc. - partially coloured reverse drawing, annealing hearths for dies and double hearth for forging dies - reverse drawings; plan and sections of the annealing furnaces, plan of the cutting out room and section of shafts through the engine house as far as the milling room, section of the cutting room and section near the shaft from the engine to the adjusting rolls, columns in cutting out room - reverse drawings; plan of the coining apartments, cross-section of the coining apartments and rooms X & Y - reverse drawings; plan and section of room Y showing part of the coining apparatus - coloured original drawing; circular plate and pillars for the cutting out frames - partially shaded reverse drawing; plan of the milling room showing the shaft and frames etc., longitudinal section of one end of the milling room with cross-sections of two of the frames, cross-section of the milling room with side view of one of the frames for carrying the milling machines - reverse drawings; section through room X - reverse drawing; sketch of the shafts etc. - partially coloured original and reverse drawings; sketch of part of the coining apparatus - direct copy and reverse drawings; plan and section of the oil shaking apartment, plan of the shaking apartment and side view of the shafts, section of the shaking apartment and longitudinal section of the stove - reverse drawings; sketch of the method of turning the lathes over the milling room - reverse drawing; iron frame for supporting the dampers - reverse drawing and tracing; sketch of cast iron plates for carrying shafts for the rolling mill; half of an unfinished plan [? - sheet not marked]. All the drawings except the last 2 items bear letter codes.
Original Portfolio or 'Book' No. 566. Catalogue of Old Engines p. 162.
For the British Mint, later the Royal Mint, Tower Hill, London.
See also: Incoming Correspondence.
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