div class=ts-pagebutton class=gotoPage data-page=1Page 1button div class=ts-imageimg data-url=precious-stones-in-1919htmlpage=1 data-page=1 class=ts-thumb lazyload alt=Page 1: Precious Stones in 1919 loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAIAAAACCAQAAADYv8WvAAAAD0lEQVR42mP8X8AwAgiABKBAv+vAXklAAAAAElFTkSuQmCC data-src=https:reader038vdocumentsusreader038viewer2022100502575067b81a28ab0f07acd417html5thumbnails1jpg width=140 height=200 divp© 1921 Nature Publishing Grouppdiv