Αρχείο:Seal of Oregon.svgOregon State Seal is in the public domain, there is a law specifically prohibiting its use in many instances: ORS 186.023: Improper use of state seal
Αρχείο:Seal of Portland, Oregon.png Seal of Portland, Oregon, adopted in 2005. Convertado a PNG de http://www.portlandonline.com/auditor/index.cfm?a=jbha&c=cheid ("City Seal" page on City
Αρχείο:Oregon state seal.pngEnglish: Oregon State Seal (Oregon) Español: Sello Estatal de Oregón (Oregón) https://creativecommons.org/publicdomain/mark/1.0/PDMCreative Commons Public
Αρχείο:Seal of Portland, Oregon.svgDescriptionSeal of Portland, Oregon.svg Seal of Portland adopted in 2005. Date 2005 Source http://austintexas.gov/sites/default/files/files/Sustainabi