Vintage fountain pen signature, "A. Einstein,” on an off-white 2 x .5 slip clipped from a typed letter and affixed to a slightly larger card. In very good to fine condition, with light soiling, and some typed text showing through from the reverse. Einstein's groundbreaking theories reshaped our understanding of the universe, laying the foundation for modern physics. His autograph is extremely desirable in any form.
This item is Pre-Certified by PSA/DNA
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