I did some research on "spike tailed beaver" and found only mention of the year 2000 variety. Does that make this 1962 rarer?
follow the below link. scroll down to errors and varieties and click on #1484. I have seen it referred to as spiketailed beaver before. 1962 is full of die cracks, chips, clashes, and machine doubling. it may be worth $5-$10 to the right person. http://www.coinsandcanada.com/coins-prices.php?coin=5-cents-1962&years=5-cents-1953-1964