Al J Casson Political Satire Sketches

I am in possession of 4 Al. J. Casson Sketches relating to Political Figures in Canadian History. I am wondering if anyone would happen to know the value of these or would be interested in purchasing these off me. I am currently in the process of having them looked at by a friend who is in the art appraisal field and just wanted to throw a line out and see if there is any interest in these amazing pieces of history/art. 

 

If interested please reply to the ad with all relevant information;

 

- Your offer

- Any information you may have about the piece(s)

- Your location (to determine if a personal exchange would be possible or if shipping would be necessary)