Hello Jasmine...
Very sorry to hear of your husband's illness but welcome to the site!.
I didn't see an email in your profile but there's lots of great members here who would be happy to help you...some of us right here in Ontario too!.
I can't seem to get any pics to work but there was two styles of Yenko block castings and many more than 5 were made..
Does yours have the letters Y-E-N-K-O cast into it alone or perhaps have a crest shape casting w/ the Yenko name in it?.
~ Pete