Wells Fargo & Co. Portland, Ore. 2 covers, c. 1870 blue oval dated Wells, Fargo & Co. cancels on 3¢ green entires with company frank at left, on shaded advertising Oregon Transfer Company envelopes, one gray & the other pink, addressed to same correspondent at Walla Walla, W.T.; both covers pristine, Choice Extremely Fine. Estimate  $150 - 200. $0 (Image)