1909, German East Africa (DOA). Copper-Nickel 10 Heller Coin. XF! Condition: XF! Mint Date: 1909 Reference: KM-12. Denomination: 10 Heller Mint Place: Hamburg (J) State: German East Africa (DOA) Material: Copper-Nickel Diameter: 26mm Weight: 6,28gm Obverse: Large crown of the German Empire with ribbons above above central hole, which splitts date (1909). Legend: DEUTSCH OST- ...