Original Rock-Lined P, 1921 [copy negative]

An enthusiastic group puts the finishing touches on the original rock-lined P, 1921. Block P students gather to fix the Poly P in 1921. This photo was reproduced in the June 1922 Polytechnic Journal. View of the P. See the original photo print here:  https://digital.lib.calpoly.edu/rekl-83463