@bekiz I acquired one about 15 years ago. The condition isn't as nice as yours, and it didn't come in the presentation case. If I recall correctly, I paid about $50 for it. Yours is very nice, and I think that the $150 that DJ mentioned would be a fair price. Chris
I looked in Hibler and Kappen's "So-Called Dollars" for you, but your medal does not match any of the pieces listed and illustrated. Hibler and Kappen numbers for this Exposition run from #353 to #368a, so that's one less source to worry about. Your medal leaves a space on the reverse for engraving a name, product, and/or company, which puts it in a slightly different category.
there's 1 on Ebay now. link: http://www.ebay.com/itm/1909-ALASKA...190118?hash=item567cdf3426:g:XvkAAOSwLVZV2N9g doug444 might be able to tell you if it is the same or not ???