Unknown2018-11-052018-11-051956-06-01EPM-065-15-007http://hdl.handle.net/20.500.11867/145496 sheets 11.5 x 9 inch, bi-folded and secured booklet style. Printed recto and verso.Hosted by the Yakima Valley Stamp Club and taking place at the Hotel Chinook, in Yakima, this booklet for the event has a "Fort Simcoe Centennial" stamp attached to the front cover and information about Fort Simcoe inside the back cover.Fort Simcoe, W. T.EnvelopeMartin, George M.Purdin, Walter J.Sixteenth annual exhibition Northwest Federation of Stamp Clubs.