569 30 Cent Buffalo Color Variation

Still kind of new to collecting so this might be a dumb question. I have found tonight a pair of the #569 30c stamps on an old parcel tag but there is nothing brown or olive brown about them. They have a dark blue frame and a black buffalo. Is this an uncommon variety ? The photo is a scan which is fairly accurate for color but in hand the blue is more apparent as is the contrast of the blue frame and the black buffalo. I will take a better SLR digital natural daylight photo to post tomorrow if more precise color accuracy is needed for an opinion. Thank you in advance.

It is not a variety.

This tag has lived a VERY hard life, and all four stamps here are seriously faded, probably from sitting in the sunlight.

Jeff, welcome to the forum!

Thanks all for the info and greeting. So it is just a marked color change from aging. It is nothing like the other brown ones I have. I have always had a good eye for colors but never would have called these brown of any shade.

Jeffsmed, it appears that the acidic board or kraft paper envelope + long term storage in an attic has badly degraded the 4 stamps and turned the paper brown. The black cork cancels make you think that the #569's are bi-colors.

As rev collector stated, they've lived a hard life.