I've done image searches for 220s and I haven't found any that show this color. I have found a description of "carmine rose", but that was still a few shades darker than this. To me, this is rose, just a few shades short of pink. It looks pink in my book. How does a new shade become a recognized variety?
Claiming a new color variety a century after the stamp was produced would be exceeding difficult. I do not know how you could prove the color seen today is not the product of 100+ years of paper and ink chemistry changes. The stamp paper shown above appears to be somewhat toned, indicating that at least some chemical changes have occurred. Also keep in mind that extraordinary claims require extraordinary evidence.
Detailed stamp color analysis requires a large number of reference stamps, definition and control of the ambient lightning conditions, and developing a very good 'color eye' after significant study. Don
Yes, I saw one the other day... "fluorescence office lighting pink", it is a mystery why no one ever identified this exciting new color back in 1875.
I do not understand how stamp colors are identified across decades when virtually no one ever defined the ambient lighting conditions. Colors are perceived by our eyes based upon ambient light waves bouncing off the surface of an object. Surely no one believes that viewing a stamp color under a gas lamp in 1860 would be the same as viewing a stamp under an LED bulb today. Don
Are there any good reference books on old USA definitive stamps? I am still looking for a reference to a carmine 9 cent Jefferson. I know it is not listed in what I have for reference. Yes, colors change over time, that is a good fact to know. The best and most accurate light that I know of is Sunlight but it changes the colors of the stamps so do not leave them out in it. Candle light and gas light... reminds me that of other things someone would insult me for mentioning. Oh well, Engravers and Printers used that.
Louise: Micarelli's Identification Guide to U.S. Stamps is one such book. It covers definitives from 1847 thru 1934. Added: The only 9-cent Jefferson that I'm aware of is from the 1922-25 regular issue and its subsequent perf varieties. I don't recall carmine being mentioned for any of these ... most are rose. The rotary press perf 11x10.5 (Scott 641) might come closest as it is listed in salmon rose & orange red shades. My copy of Micarelli has nothing to say about a carmine shade for this design.
641 s may be where it is from. I read somewhere in Stampcommunity that at the beginning of a print run colors ( or colours) as the Brits say, can be more saturated. Might that be true of a Scott 641 Rotary?
Yes indeed. There may well be many new and wonderful colors to be discovered under fluorescent lighting previously unknown to philately. Most, however, would be lost to me as I am nearly blind when it comes to subtle shading.