diff --git a/src/cg/cglib.h b/src/cg/cglib.h
index 4f51d7a31..327ee3484 100644
--- a/src/cg/cglib.h
+++ b/src/cg/cglib.h
@@ -30,6 +30,7 @@
 #endif
 
 #ifndef __PROGIND_H
+class TDocumento;
 class TProgind;
 #endif
 
@@ -1008,15 +1009,23 @@ public:
   int iva_rows() const { return iva().rows(); }
   bool solo_IVA() const { return iva_rows() > 0 && cg_rows() == 0; }
 
-	virtual int readat(TBaseisamfile& f, TRecnotype nrec, word lockop = _nolock);
-	virtual int read(TBaseisamfile & f, word op = _isequal, word lockop = _nolock);
+	virtual int readat(TRecnotype nrec, word lockop = _nolock);
+	virtual int read(word op = _isequal, word lockop = _nolock);
 	virtual int TMovimento_contabile::remove();
-	
-	void adjust_rowtypes();
+
+  virtual TMovimento_contabile & copy(const TMovimento_contabile & mov);
+  virtual TObject* dup() const { return new TMovimento_contabile(*this); }
+  virtual TMovimento_contabile& operator =(const TMovimento_contabile& mov) { return copy(mov); }
+  virtual TRectype& operator =(const TRectype & mov);
+
+	void adjust_rowtypes(); 
 	real imponibile(const char * codiva = nullptr) const ;
 	real imposta(const char * codiva = nullptr) const ;
 
 	TMovimento_contabile();
+  TMovimento_contabile(const TMovimento_contabile& mov);
+  TMovimento_contabile(long numreg);
+  TMovimento_contabile(const TRectype& mov);
 	virtual ~TMovimento_contabile() {}
 };
 
diff --git a/src/cg/cglib06.cpp b/src/cg/cglib06.cpp
index 0d669688f..ead7b2e6b 100644
--- a/src/cg/cglib06.cpp
+++ b/src/cg/cglib06.cpp
@@ -89,9 +89,34 @@ TMovimento_contabile::TMovimento_contabile()
   add_file(LF_RMOVIVA, RMV_NUMRIG);
 }
 
-int TMovimento_contabile::readat(TBaseisamfile& f, TRecnotype nrec, word lockop)
+TMovimento_contabile::TMovimento_contabile(const TMovimento_contabile& mov)
+  : TMultiple_rectype(LF_MOV), _old_iva(LF_RMOVIVA, RMI_NUMRIG)
 {
-	const int err = TMultiple_rectype::readat(f, nrec, lockop);
+  copy(mov);
+}
+
+TMovimento_contabile::TMovimento_contabile(long numreg)
+  : TMultiple_rectype(LF_MOV), _old_iva(LF_RMOVIVA, RMI_NUMRIG)
+{
+  add_file(LF_RMOV, RMV_NUMRIG);
+  add_file(LF_RMOVIVA, RMV_NUMRIG);
+  put(MOV_NUMREG, numreg);
+  read(_isequal, _nolock);
+}
+
+TMovimento_contabile::TMovimento_contabile(const TRectype& mov)
+  : TMultiple_rectype(LF_MOV), _old_iva(LF_RMOVIVA, RMI_NUMRIG)
+{
+  add_file(LF_RMOV, RMV_NUMRIG);
+  add_file(LF_RMOVIVA, RMV_NUMRIG);
+  *this = mov;
+  read(_isequal, _nolock);
+}
+
+int TMovimento_contabile::readat(TRecnotype nrec, word lockop)
+{
+  TLocalisamfile f(LF_MOV);
+  const int err = TMultiple_rectype::readat(f, nrec, lockop);
 	
 	if (err == NOERR)
 	{
@@ -110,9 +135,9 @@ int TMovimento_contabile::readat(TBaseisamfile& f, TRecnotype nrec, word lockop)
 	return err;
 }
 
-int TMovimento_contabile::read(TBaseisamfile & f, word op, word lockop)
+int TMovimento_contabile::read( word op, word lockop)
 {
-	const int err = TMultiple_rectype::read(f, op, lockop);
+	const int err = TMultiple_rectype::read(op, lockop);
 
 	if (err == NOERR)
 	{
@@ -255,6 +280,21 @@ int TMovimento_contabile::write_rewrite(TBaseisamfile& f, bool re) const
 	return err;
 }
 
+TMovimento_contabile& TMovimento_contabile::copy(const TMovimento_contabile & mov)
+{
+  TMultiple_rectype::operator=((TMultiple_rectype &)mov);
+
+  _old_iva = mov._old_iva;
+  _olddataliq = mov._olddataliq;
+  return *this;
+}
+
+TRectype & TMovimento_contabile::operator =(const TRectype & mov)
+{
+  return TMultiple_rectype::operator=(mov);
+}
+
+
 void TMovimento_contabile::find_movcoll()
 {
 	if (get_long(MOV_MOVCOLL) == 0L)