This is the Rite in the Rain No. 540F, a 4.75 x 7.5 inch hard-cover notebook with 160 numbered pages of all-weather paper in the Geological pattern. Twenty pages of reference material, map scales, and conversion tables are bound in, and the yellow Fabrikoid cover doubles as a writing surface.
It belongs in the field vest of anyone logging strata, core samples, or site observations outdoors — the coated paper repels water, sweat, grease, and mud, and even survives an accidental trip through the laundry. Numbered pages keep the record orderly for later transcription.
Rite in the Rain has made all-weather writing paper in Tacoma, Washington since 1916, when it was developed for logging crews in the Pacific Northwest.









