I want to thank you for all your help in the last month or more on finding the Dr Christopher book. I had bid on it on ebay and lost.
Then when my son asked what I wanted for my birthday, I gave him the hint. I explained the difference between the date before 1983 and after and the centennial edition. He ordered the one they said was a 1976 edition (or it might have been 77 or 79). When it came it was the centennial edition. I was just going to keep it and pretend it was the correct one, but he had an idea it was wrong. He checked with the site he ordered it from and they had indeed advertised it as the original. They said they would take it back but he would have to pay shpg. He didn't like that idea since it was their mistake/false advertising, so after insisting and no results he had to get the better business bureau and/or paypal after them. They ended up saying just keep it.
Then he found the original and bought it for me. That was really a special gift and I also want to thank you for helping me find it.