diff --git a/include/osgDB/Serializer b/include/osgDB/Serializer
index 663b92ecb..835e651ad 100644
--- a/include/osgDB/Serializer
+++ b/include/osgDB/Serializer
@@ -1186,6 +1186,7 @@ public:
     virtual unsigned int size(const osg::Object& obj) const { return 0; }
 
     virtual MapIteratorObject* createIterator(osg::Object& obj) const { return 0; }
+    virtual MapIteratorObject* createReverseIterator(osg::Object& obj) const { return 0; }
 
 protected:
     Type _keyType;
@@ -1204,6 +1205,7 @@ public:
     typedef typename P::key_type  KeyType;
     typedef typename P::mapped_type  ElementType;
     typedef typename P::iterator Iterator;
+    typedef typename P::reverse_iterator ReverseIterator;
     typedef typename P::const_iterator ConstIterator;
     typedef P& (C::*Getter)();
     typedef const P& (C::*ConstGetter)() const;
@@ -1270,6 +1272,23 @@ public:
         virtual void setElement(void* ptr) const { if (valid()) _itr->second = *reinterpret_cast<ElementType*>(ptr); }
     };
 
+    struct ReverseMapIterator : public MapIteratorObject
+    {
+        ReverseMapIterator(BaseSerializer::Type keyType, unsigned int keySize, BaseSerializer::Type elementType, unsigned int elementSize,
+                    ReverseIterator itr, ReverseIterator endItr):
+            MapIteratorObject(keyType, keySize, elementType, elementSize),
+            _itr(itr),_endItr(endItr) {}
+
+        ReverseIterator _itr;
+        ReverseIterator _endItr;
+
+        virtual bool advance() { if (valid()) ++_itr; return valid(); }
+        virtual bool valid() const { return _itr!=_endItr; }
+        virtual const void* getKey() const { return valid() ? &(_itr->first) : 0; }
+        virtual void* getElement() const { return valid() ? &(_itr->second) : 0; }
+        virtual void setElement(void* ptr) const { if (valid()) _itr->second = *reinterpret_cast<ElementType*>(ptr); }
+    };
+
     virtual MapIteratorObject* createIterator(osg::Object& obj) const
     {
         C& object = OBJECT_CAST<C&>(obj);
@@ -1277,6 +1296,13 @@ public:
         return new MapIterator(_keyType, _keySize, _elementType, _elementSize, map.begin(), map.end());
     }
 
+    virtual MapIteratorObject* createReverseIterator(osg::Object& obj) const
+    {
+        C& object = OBJECT_CAST<C&>(obj);
+        P& map = (object.*_getter)();
+        return new ReverseMapIterator(_keyType, _keySize, _elementType, _elementSize, map.rbegin(), map.rend());
+    }
+
     virtual bool read( InputStream& is, osg::Object& obj )
     {
         C& object = OBJECT_CAST<C&>(obj);
diff --git a/src/osgPlugins/lua/LuaScriptEngine.cpp b/src/osgPlugins/lua/LuaScriptEngine.cpp
index b5a788a85..5bd2c9207 100644
--- a/src/osgPlugins/lua/LuaScriptEngine.cpp
+++ b/src/osgPlugins/lua/LuaScriptEngine.cpp
@@ -492,6 +492,28 @@ static int createMapIterator(lua_State* _lua)
     return 0;
 }
 
+static int createMapReverseIterator(lua_State* _lua)
+{
+    const LuaScriptEngine* lse = reinterpret_cast<const LuaScriptEngine*>(lua_topointer(_lua, lua_upvalueindex(1)));
+    int n = lua_gettop(_lua);    /* number of arguments */
+    if (n<1 || lua_type(_lua, 1)!=LUA_TTABLE) return 0;
+
+    osg::Object* object  = lse->getObjectFromTable<osg::Object>(1);
+    std::string containerPropertyName = lse->getStringFromTable(1,"containerPropertyName");
+
+    // check to see if Object "is a" vector
+    osgDB::BaseSerializer::Type type;
+    osgDB::BaseSerializer* bs = lse->getPropertyInterface().getSerializer(object, containerPropertyName, type);
+    osgDB::MapBaseSerializer* ms = dynamic_cast<osgDB::MapBaseSerializer*>(bs);
+    if (ms)
+    {
+        lse->pushObject(ms->createReverseIterator(*object));
+        return 1;
+    }
+
+    return 0;
+}
+
 //////////////////////////////////////////////////////////////////////////////////////
 //
 //  MapIteratorObject support
@@ -3037,6 +3059,7 @@ void LuaScriptEngine::pushContainer(osg::Object* object, const std::string& prop
             assignClosure("clear", callMapClear);
             assignClosure("size", getMapSize);
             assignClosure("createIterator", createMapIterator);
+            assignClosure("createReverseIterator", createMapReverseIterator);
 
             luaL_getmetatable(_lua, "LuaScriptEngine.Map");
             lua_setmetatable(_lua, -2);