Kasey,
Your Bearcat from what information you provided should date from 1970-1972.You didnt mention it but if I'm correct the coin is flush with the wood also. The 'K" series started in 1970 and continue throughabout 1978 I believe. the "Canada 1953 Patent date was discontinue in 1972. At the end of 1972 the coins were raised plastic.There maybe other features that may help clairify it more but without pics that gets you pretty close. Hope this helps...
Hoof