This is a 1964 2-page ad for a Hewlett-Packard 740A Standard/Differential Voltmeter; 3400A RMS Voltmeter; 3440A Digital Voltmeter! The size of the ad is approximately 11x17inches. The caption for this ad is 'Voltmeters f.o.b. Hewlett-Packard Loveland' The ad is in great condition. This vintage ad would look great framed and displayed! Add it to your collection today!