Answer: Sometimes apple trees get confused and flower at the wrong time of year. It is not normal, but it won't hurt your tree. Obviously, the apples won't ripen, but you can just leave them alone. If they don't fall off this winter, pull them off the tree.
As for identifying an apple, it takes an expert and the best place to find out is by taking a sample to a fall fruit show. Contact WSU cooperative extension there in Vancouver and ask when the Western Washington Fruit Research Foundation will be holding their fall fruit show. Helpful folks at the extension office can lead you in the right direction.
Best wishes with your apple tree!
Q&A Library Searching Tips