When washing windows try to wash them out of direct sunlight.  Do the northern and west side windows when the sun is rising and then the east and southern facing windows when the sun is in the west.  Wash with mild liquid soap, rinse, then get a pail of fresh water with about one quart of white vinegar, then wipe dry with newspapers.  the inks from the newsprint will add a glisten to the window panes.  Hope this helps. :)

That coin would be worth fifty-cents (.50) but if you take it to a coin dealer perhaps you may be able to sell it for the silver content and get more money, depending on the grade of silver contained in the coin, if any.