Skol Lager beer coaster
Source: http://www.flickr.com.Uploaded to Flickr by Stephen Coles and tagged with "perpetua". License: CC BY-NC-SA.
The name is related to the Scandinavian toast "skål". Logo is essentially Stencil but with the 'R' leg for the 'K'.
From an estate sale in the neighborhood. Guy collected anything beer related. The most coasters I have ever seen in one place. Most were new and boring, but these were some of the more interesting ones. 10 for a dollar!
Want more? Check out Michael's amazing set.