Posted By:
George DreherThe age of the pen has nothing to do with feathering...it is signing on old paper that causes it. The feathering being caused by old paper absorbing an abnormal amount of the ink due to a breakdown in the composition of paper over time.
Yes, carefully slowly drawing a signature can cause feathering, as in old age, but this shouldn't be a factor in determining authenticity on yours because the example yours more closely matches in style is his signature as a young man. The top signature Steve M. provided is how he signed in later life.