£600 - £800
AN EARLY 20TH CENTURY HANNYNGTON PATTERN GRID-IRON SLIDE RULE BY ASTON AND MANDER, LONDON
with fifteen boxwood scales secured to removable ebonised base and eight interchangeable sliding scales inscribed on the back Designed by Major General Hannyngton, Aston and Mander & Co., London -- 33 x 9in. (84 x 23cm.)
Mild warp to main board, lid scuffed with some veneer lifting.
Fees apply to the hammer price:
Free Registration
32.4% inc VAT*
Flat Fee Registration
28.80% inc VAT*
