(Alpine) Silver Mountain, Cal., May 15, double circle postmark (ALP-230, R4) on 1868 cover to London, England, franked with 1861, 10¢ green + 1863, 2¢ black (s.e. at left) canceled by circle of wedges cancels & tied by red "New York Paid All" transit cds, manuscript "via Queenstown" routing endorsement and red "London" arrival postmark at left, original enclosure included which is well written & full of mining details; adhesives with small faults, otherwise Very Fine. Scott No. 68+73  Estimate $300 - 400. Two letters posted in envelope and a directive talk about the Forest ledge and tunnel, also information about the Mt Bullion mine. $0 (Image)