We are more than appreciate your feedback. MNH means Mint Never Hinged (Postfrisch) MH or Mint means Mint Hinged MNG means Mint No Gum. Collector's Shop International LTD. Main Shop : 119 Solonos str. The item "Greece- 1960-1969 Full Decade Complete Year sets Stamps-Souvenir Sheets MNH" is in sale since Friday, May 4, 2018.This item is in the category "Stamps\Europe\Greece". The seller is "takiss" and is located in Athens, Attica. This item can be shipped worldwide.