div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=20-10-10-10-20-30-declination-magnetic-variation-at-htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: -20 10 -10 10 20 30 Declination magnetic variation at loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader031vdocumentinreader031viewer20220125056180b24a9ddb39449f19cec1html5thumbnails1jpg width=140 height=200 divdiv