This is the Rite in the Rain No. OD97 weatherproof clicker pen in olive drab green with black ink. The pressurized all-weather cartridge is manufactured in the USA by Fisher Pen Company and writes at any angle, underwater to 35 feet, and in temperatures from -30F to 250F.
It pairs with all-weather paper for field work, hunting logs, and duty notes where ordinary ballpoints clog and quit. The metal clicker body takes pack and pocket abuse, and the subdued olive finish suits field carry.
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.









