This is a full sized (12 X 30 inch) San Francisco Fog pennant (1).  I've been collecting MISL pennants for over 40 years and this is the only place you will ever see this pennant.  It is brand new and a little lighter weight than the old ones but still has the sewn on 1-inch strip and looks awesome on display (see photos).  This is your only chance to add this pennant to your collection as the Fog only lasted one season and never produced a pennant as they folded before they got their marketing off the ground.