Description
Rear of Cover 2 x Cachet 1- Mail Office 10 Aug 1972 HMS Danae, 2-Flag Officer 21 Aug 1972 Malta.
There was a special post box at Fortress Postal Courier and Communications Unit RE BFPO 52 where items posted would receive the special handstamp
Items for re-posting needed to be sent to the Philatelic Officer at BFPO 52