Spokane, Portland and Seattle (SP&S) Mail and Baggage Car Number 31, Pasco, Washington, June 1968 Ainsworth, Walter W. Railroad passenger cars Burlington Northern Railroad Spokane, Portland, and Seattle Railway Spokane, Portland and Seattle combination Railway Post Office (RPO) mail and baggage car Number 31 at Pasco, Washington in June 1968. June 1968 1 photograph https://staging.atom.pnrarchive.org/spokane-portland-and-seattle-sp-s-mail-and-baggage-car-number-31-pasco-washington-june-1968-2 WWASPS-PC1-007 eng Pasco (Wash.) Please see Section VII of the [Pacific Northwest Railroad Archive Collection Management Policy](https://atom.pnrarchive.org/index.php/PNRA-collections-policy) for further information.