Hi everybody I just picked up a copy of the 18th edition of Photograde by Ruddy at a used book sale for a buck. My question is: has anything changed since this edition. Can I still use this book with accuracy? Thanks, Mike
They put out a new edition every year, I think they are up to the 30th edition now. Never hurts to have older copies, but I'd look for a newer one if it was me.
An interesting and possibly inexpensive study could be done with Photograde. Since it has 30+ years of history, it would seem possible to me to get as many editions as possible and do a comparison over time. Pick a couple common coins in a common grade and see how the pictures and descriptions have changed over the years. Stuff like Morgans in XF. Scanning all the pictures and descriptions for a few select coins wouldn't be hard. Then put them all together side by side and see what shows up. I believe this would be the only grading guide you could do this with.
