I just found 4 1973 canadian dollar bills in a book I bought second hand. Three of the bills are consecutive and as far as I can tell they are in perfect condition still crisp....no creases or turned edges or anything. The serial number for the first one is BFG4768160. the consconsecutive ones are: BCN6055051, BCN6055052 and of course BCN6055053. Can someone tell me what they are worth so I dont get ripped off if I decide to sell them in the future? THANKS ALL!!