Lot 1354 , WWI artillery battery range calculator and similar Houghton-Butcher protractor, 1915/16
WWI artillery battery range calculator and similar Houghton-Butcher protractor, 1915/16
£60-80
Sold for £85
WWI artillery battery range calculator and similar Houghton-Butcher protractor, 1915/16
£60-80
Sold for £85