2018 AD., Germany, Federal Republic, Federal States series, state of Berlin commemorative, Charlottenburg Palace, Hamburg mint, 2 Euro.

Germany, Federal Republic, Federal States series, state of Berlin commemorative, engravers: Bodo Broschat (obverse) and Luc Luycx (reverse), Hamburg mint ("J"), 2018 AD.,
2 Euro (25,8 mm / 8,49 g), bimetallic, brass plated nickel center in a copper-nickel ring, 8,50 g. theor. mint weight, mintage 6.300.000 , axis medal alignment ↑↑ (0°) ,
Obv.: 2018 - D / {BBR} – BERLIN / J , front view of the Charlottenburg Palace in Berlin, within 12 stars on the copper-nickel ring; date and country indication "D" above, legend and mint mark "J" below, engraver´s monogram "{BBR}" on left entrance pillar.
Rev.: 2 EURO / LL , map of Europe (second map type), to right 6 lines and twelve stars of Europe on the edge; engraver´s initials LL to r.
Edge: (eagle) EINIGKEIT UND RECHT UND FREIHEIT , incuse depiction and motto on a reeded edge.
Jaeger ? ; Schön ? ; KM ? .
(from circulation in 2018)

German coins of the later 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.

Year / Mint Mark / Mintage / Details
2017 A 6,000,000
2017 A ? Proof
2017 A ? In Sets only
2017 D 6,300,000
2017 D ? Proof
2017 D ? In Sets only
2017 F 7,200,000
2017 F ? Proof
2017 F ? In Sets only
2017 G 4,200,000
2017 G ? Proof
2017 G ? In Sets only
2017 J 6,300,000
2017 J ? Proof
2017 J ? In Sets only

The Charlottenburg Palace in Berlin is in the Charlottenburg district of the Charlottenburg-Wilmersdorf. The palace was built at the end of the 17th century and was greatly expanded during the 18th century. It includes much lavish internal decoration in baroque and rococo styles. A large formal garden surrounded by woodland was added behind the palace, including a belvedere, a mausoleum, a theatre and a pavilion. During the Second World War, the palace was badly damaged but has since been reconstructed. The palace with its gardens are a major tourist attraction.
The original palace was commissioned by Sophie Charlotte, the wife of Friedrich III, Elector of Brandenburg in what was then the village of Lietzow. Named Lietzenburg, the palace was designed by Johann Arnold Nering in baroque style.

more on https://en.wikipedia.org/wiki/Charlottenburg_Palace