This is a vintage navigational map / chart - # 11451 - Miami to Marathon and Florida Bay - Fl.  Edition 23 - April 1986.   It has 4 double sided pages   Shipping is $7.50 if within the USA.  Overall it is in good condition, but does have some edge discoloration and fraying.    Check out my other items.    I have quite a few different navigational charts listed.   I have quite an eclectic mix of interesting items listed, and am always adding more.  Please add me to your favorites list.