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Message:: [QUOTE="Insider, post: 2602326, member: 24314"]IMO, ICG's RB coins may often have more brown than PCGS; however, some time ago (when?) ICG introduced Brown-Red (BR) to their grading system for copper to narrow the difference where it occurs. Look, I've been collecting before there were grading or authentication services.  In the old day's, a copper coin was red until it got a little brown.  Then the coin became RB all the way through the changes of color until there was only a trace of red left. After any trace of red (often inside or next to the relief) was gone, the coin was finally brown.  Easy, no disagreements, no percentages to guess, nothing.  Any red = RB.  The old "TRUE technical" grading system that was only used at ANACS in DC ** used this R/RB/B criteria.  This does not work well when trying to put copper coins into a "box of color" to indicate their value as is done today by the major TPGS's.  As already posted there is a large difference in value between a red coin and one that is almost all red. **  In a grading seminar decades ago taught by the man who developed it, we learned that true technical grading as it was devised in DC for internal record keeping was "bastardized and changed" when ANACS was moved to CO.  Although they claimed to grade technically, it was close but no cigar.[/QUOTE]