1969 AD., Germany, Federal Republic, 375th anniversary of the death of Gerhard Mercator commemorative, Stuttgart mint, 5 Deutsche Mark, KM 126.1.

Germany, Federal Republic, 375th anniversary of the death of Gerhard Mercator commemorative, engraver: Doris Waschk-Balz, Stuttgart mint ("F"), dated 1969 AD., issued 08.07.1970,
5 Deutsche Mark (29 mm / 11,21 g), 0,625 silver, 11,20 g theor. mint weight, mintage 5.254.000 , axes medal alignment ↑↑, plain, immerged lettered edge,
Obv.: · BUNDESREPUBLIK DEUTSCHLAND · / 19 - 69 / 5 / F / DEUTSCHE - MARK , issuer, value and mint mark around eagle.
Rev.: 1512-1594 · GERHARD · MERCADOR , his head facing half right, map behind, his dates to left.
Edge: plain with immerged inscription "TERRAE DESCRIPTIO AD USUM NAVIGANTIUM" ("the description of the earth for the use of navigation") followed by an arabesque.
KM 126.1 ; J. 400 . (proof edition)

Year / Mint Mark / Mintage / Details
1969 F 5,004,000 KM 126.1
1969 F 250,000 KM 126.1 (proof edition)
1969 F KM 126.2 (error: smooth edge)
1969 F KM 126.3 (error: with edge lettering: "EINIGKEIT UND RECHT UND FREIHEIT")
1969 F KM 126.4 (error: with long "R" in "MERCATOR")

German coins of the Federal Republic are produced at five different mints, coins from each of them can be identified by their mintmarks, A = Berlin, D = Munich, F = Stuttgart, G = Karlsruhe, J = Hamburg.

Gerardus Mercator (born 5 March 1512 in Rupelmonde, County of Flanders (in modern Belgium), died 2 December 1594 in Duisburg, United Duchies of Jülich-Cleves-Berg, (modern-day Germany)) was a cartographer, philosopher and mathematician. He is best known for his work in cartography, in particular the world map of 1569 based on a new projection which represented sailing courses of constant bearing as straight lines. He was the first to use the term "atlas" for a collection of maps..
More on http://en.wikipedia.org/wiki/Gerardus_Mercator