A sweeping bird's-eye panorama of early Portland, Oregon fans out across this extraordinary pre-Divided Back "Book Post" novelty card — the entire cityscape, from densely packed Victorian neighborhoods in the foreground to the unmistakable snow-capped cone of Mount Hood shimmering on the horizon, is printed across a folded card that opens via a small brass butterfly fastener, one of the charming mechanical patents of the Edwardian postcard golden age. Published by B.B. Rich of Portland and manufactured in Germany under patent, this is a pre-1907 Undivided Back era piece, with the reverse labeled simply "Book Post" and offering only a single address block — no space for a message, as postal regulations of the time required any writing to go on the picture side. Mount Hood's perfect volcanic silhouette and the dense grid of Portland's West Hills neighborhoods make this a visually compelling record of the Rose City just months after the 1905 Lewis and Clark Centennial Exposition that put Portland on the national map.