NOTES: The rolling parallel rule was invented in 1771 by A. G. Eckhardt. It enabled draughtsmen to draw parallel lines when using a drawing board. This rule was made by Baker, High Holborn, London.
NOTES: An electric eraser is useful for rubbing out large areas of pencil or lines drawn in ink. This eraser belonged the architect Carl Franck (1904-85) and was manufactured by Ariel.
SOURCE: Andrea Palladio. The Architecture of Andrea Palladio in Four Books (London, 1715), ed. Giacomo Leoni, book II, pl. XIV NOTES: This English edition of Palladio's I Quattro libri dell'architettura contains plates copied from the first Italian edition, published in 1570 and includes additional 'notes and observations' by Inigo Jones. The Villa Rotonda was already inhabited in 1569 but still incomplete. It was finished by Vincenzo Scamozzi in 1606 to Palladio's original design.
NOTES: This appears to be a composite set of instruments with the earliest piece (a folding rule dated 1598) inscribed with its maker's name, Marcus Purman (also known as Marcus Peurmann) of Munich. Other items in the set include parallel rules, pencil compasses, dividers, a protractor, a sector inscribed 'Daniel Chorez', an angle set square, a magnetic compass and a German scale with comparative indices for Munich, Vienna and Salzburg.
SOURCE: Daniele Barbaro. La pratica della perspettiva di Monsignor Daniel Barbaro (Venice, 1559), p. 191 NOTES: This image is after a woodcut by Albrecht Durer entitled 'Man drawing a lute', from his 1525 treatise on perspective.
SOURCE: Sebastiano Serlio. Il Primo libro d'architettura (Di Architettura, book I) (Venice, 1551), title page NOTES: This 1551 publication formed the first collected edition of all five of Serlio's books on architecture, which had previously appeared as first editions between 1537 and 1547.
SOURCE: Vicenzo Scamozzi. Discorsi sopra l'antichita di Roma, di Vicenzo Scamozzi (Venice, 1583), frontispiece NOTES: First published in 1581, this edition of the work is a later issue of the first edition sheets. The etchings are reprinted from an earlier suite of Roman views.
NOTES: This drawing is from an album of designs and sketches by Hunt, who appears to have been an amateur architect. None of these designs are known to have been executed. The drawings seem to date from the mid-1760s to the mid-1790s.