Chasing Embers noted the same thing I was going to say, which is that the pipes stained in ox blood will fade and return to white. Though that takes a lot of years and a lot of smokes. I have a Yanik giant apple that was dipped in yellow beeswax and was a bright yellow color upon arrival. However, as I've smoked it over the years that yellow color is fading and I'm beginning to see white coming through. So, it's possible that those deep ox blood pipes that are only stained around the base of the stummel and shank were probably so heavily smoked that they've returned to their natural color. I think of it as reverse coloring.
Chasing Embers also noted that meers will color without beeswax, and that is true. It's my opinion that pipes with wax will hold their color better overtime but that's just my opinion. I could be completely wrong though as I don't have any meers without wax on them.
I don't believe any of the ones I've shown were stained with oxblood. Too many smokers have mentioned the deep cherry red occurring from smoking, not from staining. Not saying yours and Chasing Embers pipes aren't stained with oxblood - I have no idea - but mine aren't.
From an 1874 NY Times article:
"The important question of coloring comes up next. He must select one of two ways in which to do it, and before he begins, before even one pipeful of tobacco can be smoked, he must make up his mind as to which he will take. The first is by the use of what is called the “button,” and the second by the “plug.” A wide difference of opinion exists among amateurs and experts in the art as to which is the best. By the first method a meerschaum button, made to fit the lower part of the cavity of the pipe, with four or five small holes bored perpendicularly through it, is placed in the bottom, and upon it the tobacco. The smoke, passing through the button, soon saturates it with the essential oil, or nicotine, and thence it is absorbed into the body or the pipe, which soon acquires that dark cherry-brown color so much admired by connoisseurs. The “plug” method is very much on the same principle. A wad of moist tobacco is placed in the bottom of the pipe, and the tobacco to be smoked is put in loosely on the top. The “plug” must not be taken out until the pipe is fairly colored. It acts as the button does in absorbing the nicotine and transmitting it to the pipe. He decides that he will try the “plug” process, and with great care, moistens a sufficient quantity of tobacco, and after fixing it in its place proceeds to fill up his pipe very carefully. He then gets a match, and taking great pains not to allow the flame to touch the white edges of the virgin meerschaum, begins to smoke. He knows what he is about, evidently, for he smokes his pipe tenderly and considerately. He takes care not to heat it, for he knows that if he does it will never color properly. When the tobacco has burned down to the plug be gently scrapes out the ashes, and, giving it a parting glance of affection, puts it back in its case in order to let it cool off. Half an hour later he smokes it again, and when bedtime comes he takes it up stairs with him and puts it on his dressing table with his watch, so that he can save it in case of fire. And so he continues smoking it a little while each evening, and at last is rewarded by seeing a delicate straw color make its appearance on the bowl on a line with the plug. Then he feels happy. Re polishes his pipe with his handkerchief and shows it to his wife and she expresses a due amount of admiration. And so he goes on until it is of a beautiful cherry-brown from the top of the stem to the middle of the bowl, and he has something to be proud of, and which does him credit as a smoker and the man he bought it of as a manufacturer. "