diff --git a/include/boost/concept_archetype.hpp b/include/boost/concept_archetype.hpp
index 7acd80c..5eb39dc 100644
--- a/include/boost/concept_archetype.hpp
+++ b/include/boost/concept_archetype.hpp
@@ -403,78 +403,6 @@ namespace boost {
   //===========================================================================
   // Iterator Archetype Classes
 
-  template <class T>
-  struct input_proxy {
-    operator const T&() { return static_object<T>::get(); }
-  };
-  template <class T>
-  class trivial_iterator_archetype
-  {
-    typedef trivial_iterator_archetype self;
-  public:
-#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-    typedef T value_type;
-    typedef void reference;
-    typedef void pointer;
-    typedef void difference_type;
-    typedef void iterator_category;
-#endif
-    trivial_iterator_archetype() { }
-    self& operator=(const self&) { return *this;  }
-    bool operator==(const self&) const { return true; }
-    bool operator!=(const self&) const { return true; }
-    input_proxy<T> operator*() const { return input_proxy<T>(); }
-  };
-} // namespace boost
-
-#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_NO_STD_ITERATOR_TRAITS)
-namespace std {
-  template <class T>
-  struct iterator_traits< boost::trivial_iterator_archetype<T> >
-  {
-    typedef T value_type;
-  };
-}
-#endif
-
-namespace boost {
-  template <class T>
-  struct input_output_proxy {
-    input_output_proxy<T>& operator=(const T&) { return *this; }
-    operator const T&() { return static_object<T>::get(); }
-  };
-  template <class T>
-  class mutable_trivial_iterator_archetype
-  {
-    typedef mutable_trivial_iterator_archetype self;
-  public:
-#ifdef BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION
-    typedef T value_type;
-    typedef void reference;
-    typedef void pointer;
-    typedef void difference_type;
-    typedef void iterator_category;
-#endif
-    mutable_trivial_iterator_archetype() { }
-    self& operator=(const self&) { return *this;  }
-    bool operator==(const self&) const { return true; }
-    bool operator!=(const self&) const { return true; }
-    input_output_proxy<T> operator*() const { return input_output_proxy<T>(); }
-  };
-} // namespace boost
-
-#if !defined(BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION) && !defined(BOOST_NO_STD_ITERATOR_TRAITS)
-namespace std {
-  template <class T>
-  struct iterator_traits< boost::mutable_trivial_iterator_archetype<T> >
-  {
-    typedef T value_type;
-  };
-}
-#endif
-
-namespace boost {
-
   template <class T>
   class input_iterator_archetype
   {