We’ve launched this month’s Archives Treasures online poll, so it’s time to vote on your favorite among these three choices: Seattle pioneer David Denny’s powder horn, photos and documents from the 1975 arrival of Vietnamese refugees in Washington, and documents related to the 1980 eruption of Mount St. Helens.

Vote using our online poll below. The poll closes at 5 p.m. on Wednesday, so don’t miss out on voting!

Seattle pioneer David Denny’s powder horn

1975 Vietnamese refugee photos, documents

1980 Mount St. Helens eruption documents

[poll id=”39″]