Mark:
As a Canadian, you might not understand this. But why not get a booklet from the Birmingham Proof house, read it, and interpret the proof marks yourself? Then again, it's much easier to ask others to do it. Please pardon my cynical nature.
Your comment is not merely cynical, it's rude. Some of us don't have the resources to buy books all the time, and the resources sometimes raise as many questions as they answer; some of us like to learn by asking people we think will know, and even those who know can learn more from sharing what they know.
I started visiting and posting again because I thought this sort of rubbish had settled...
RG