1905, "Portland, Ore. Jun 2 1905", with "Exposition Sta." slogan, ties 1903, 1¢ green on multicolor post card showing night scene on the trail, addressed to Centralia, Wash.; light corner creasing, Very Fine, One only only two recorded examples of this machine cancellation. Bomar No. P05-03  $600. This is an International machine cancellation with the words EXPOSITION STA. in the center of 7 horizontal lines. According to David Savadge, he suggest based on cancel characteristics that this was a hand powered machine. The only date seen is June 2nd 1905. Apparently this cancel was initially used in the first week of the expo, then was replaced by the International electric machine with P05-02. $0 (Image)

1905, "Portland, Ore. Jun 2 1905", with "Exposition Sta." slogan, ties 1903, 1¢ green on multicolor post card showing long timber at railyard, addressed to Spokane Wash.; light corner creasing, F.-V.F., This is the earliest recorded example of this machine cancellation. Bomar No. P05-02  Estimate $75 - 100. This is an International machine cancellation with the words EXPOSITION STATION in the center of 7 horizontal lines. It replaced Bomar P05-03. $0 (Image)