Albert Einstein (1879. - 1955.), one of the greatest scientists of the 20th century, is most famous for his theory of relativity which revolutionised modern physics. The theory of relativity is so named because according to this principle absolute greatness does not exist; rather everything is to be seen in relation to everything else. Within the field of physics this consists of two specific theories: special relativity and general relativity.
The Croatian Post Ltd. Mostar has issued a commemorative postage stamp in a sheet of 8 stamps + 1 vignette, postmark and First Day Cover (FDC).
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Commemorative Postage Stamp 100th Anniversary of Albert Einstein's General Theory of Relativity
A number of valuable postage design projects have arisen from the excellent ongoing cooperation between Croatian Post Ltd. Mostar and Shift Brand Design agency. Last in a series of works, the new stamp bears the image of Albert Einstein on the occasion of the 100th anniversary of the publication of General Theory of Relativity. The design is credited to our director, Marin Musa.

Size: 35.50 x 25.56 mm
Paper: white, 102 g, adhesive
Comb perforation: 14
Print: Zrinski d.d. Čakovec
Date of issue: 20. 3. 2016
Value: 0.90 BAM
Copies: 70.000 pieces
Sheet: 8 stamps + 1 vignette