From someone who has sold to many different levels of converter buyers from the low level guy to the refiners themselves, there is no such book. For one it would be a ridiculously grueling job of compiling one. For example, you take a picture of a converter that is a SF, but on the other side is an O2 sensor, that alone could change the grade, plus where is the sensor located? Middle? Rear? All separate grades of three converters that would all look the same from one angle. You can take a million pictures of converters, but it's only going to get you a ball park estimate. The catalytic converter market has changed drastically over the past few years. 10 years ago I bought and sold on 10 grades of converters, today there's over 90 grades of a GM. Everything is becoming number specific. Too rusty to read the number? Then it becomes the lowest priced one. I was always taught to be cautious of anyone with a "picture book." Just because guy A calls something a GM doesn't mean guy B won't call it a 4 dot (4 dots come off of (G)eneral (M)otors vehicles) see the confusion? Grades are constantly changing in today's market, so that picture may not be accurate in six months. After 14 years I'm still learning, plus they keep making new model cars, thusly new model converters. Bottom line: the guys at the top control it all, then it trickles down. Experience is the best learning tool. Handling each converter and paying attention to the guy grading them is the best place to start. After that just use some intuition, if you feel like you're being cheated, use someone else, it is your product after all. If you're pleased with how it's going chances are the guy is treating you fairly.
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