Mines de Fer nommes Normarken dans la Province Wermelandie en Svede. [Bound ms. volume (of 19 leaves) of watercolours and text re iron mining in Nordmark, Sweden to 1776. Contains: watercolour of mine shafting and tunnels; illustrated title page; a 1:800 scale ms. map view of the mine workings built up from 12 superimposed coloured map sections with cutouts, each section representing a different level of the workings and the whole producing a perspective effect; an ms. account (in French) of the geology and history of the mines up to 1776; index; 3 leaves of coloured vertical section drawings. End papers watermarked 1801. Text papers bear different watermark of uncertain date]