Changeling

Changelings or color changelings are stamps where the ink color has been altered chemically, often in unexpected colors. This can be due to fading or other ageing effects including oxidation. The latter was often caused by exposure to coal fumes containing sulfur from home heating.

Sometimes a stamp color has been completely changed, other times a part has been changed, or there is a gradient of color. If you have an older stamp where catalogs do not list the color you have, chances are very good that you have a changeling of some kind.

(to be continued)





[[Category:C]]