diff --git a/htdocs/comm/propal/class/propal.class.php b/htdocs/comm/propal/class/propal.class.php
index 2e02323c090..e5176cebdde 100644
--- a/htdocs/comm/propal/class/propal.class.php
+++ b/htdocs/comm/propal/class/propal.class.php
@@ -13,7 +13,7 @@
  * Copyright (C) 2013      Florian Henry		  	<florian.henry@open-concept.pro>
  * Copyright (C) 2014-2015 Marcos García            <marcosgdf@gmail.com>
  * Copyright (C) 2018      Nicolas ZABOURI			<info@inovea-conseil.com>
- * Copyright (C) 2018-2019 Frédéric France          <frederic.france@netlogic.fr>
+ * Copyright (C) 2018-2020 Frédéric France          <frederic.france@netlogic.fr>
  * Copyright (C) 2018      Ferran Marcet         	<fmarcet@2byte.es>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -214,8 +214,6 @@ class Propal extends CommonObject
 	public $labelStatus = array();
 	public $labelStatusShort = array();
 
-	public $specimen;
-
 	// Multicurrency
 	/**
 	 * @var int ID
diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 16309d31658..6abbab2acff 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -95,6 +95,9 @@ class Facture extends CommonInvoice
 	 */
 	protected $table_ref_field = 'ref';
 
+	/**
+	 * @var int thirdparty ID
+	 */
 	public $socid;
 
 	public $author;
@@ -111,6 +114,10 @@ class Facture extends CommonInvoice
 
 	public $date; // Date invoice
 	public $datem;
+
+	/**
+	 * @var string customer ref
+	 */
 	public $ref_client;
 
 	/**
@@ -169,7 +176,6 @@ class Facture extends CommonInvoice
 
 	public $line;
 	public $extraparams = array();
-	public $specimen;
 
 	public $fac_rec;
 
diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 9de8f5470de..a5b6e0b84de 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -12,7 +12,7 @@
  * Copyright (C) 2017      ATM Consulting       <support@atm-consulting.fr>
  * Copyright (C) 2017-2019 Nicolas ZABOURI      <info@inovea-conseil.com>
  * Copyright (C) 2017      Rui Strecht		    <rui.strecht@aliartalentos.com>
- * Copyright (C) 2018-2019 Frédéric France      <frederic.france@netlogic.fr>
+ * Copyright (C) 2018-2020 Frédéric France      <frederic.france@netlogic.fr>
  * Copyright (C) 2018      Josep Lluís Amador   <joseplluis@lliuretic.cat>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -334,6 +334,12 @@ abstract class CommonObject
 	 */
 	public $last_main_doc;
 
+	/**
+	 * @var int Bank account ID
+	 * @see $fk_account
+	 */
+	public $fk_bank;
+
 	/**
 	 * @var int Bank account ID
 	 * @see SetBankAccount()
@@ -437,6 +443,11 @@ abstract class CommonObject
 
 	public $next_prev_filter;
 
+	/**
+	 * @var int 1 if object is specimen
+	 */
+	public $specimen = 0;
+
 	/**
 	 * @var array	List of child tables. To test if we can delete object.
 	 */
diff --git a/htdocs/societe/class/societe.class.php b/htdocs/societe/class/societe.class.php
index 7946a032423..e1cfd822b79 100644
--- a/htdocs/societe/class/societe.class.php
+++ b/htdocs/societe/class/societe.class.php
@@ -501,9 +501,6 @@ class Societe extends CommonObject
 	 */
 	public $user_creation;
 
-
-	public $specimen;
-
 	/**
 	 * 0=no customer, 1=customer, 2=prospect, 3=customer and prospect
 	 * @var int
diff --git a/htdocs/supplier_proposal/class/supplier_proposal.class.php b/htdocs/supplier_proposal/class/supplier_proposal.class.php
index bb8387c55e3..56d872126df 100644
--- a/htdocs/supplier_proposal/class/supplier_proposal.class.php
+++ b/htdocs/supplier_proposal/class/supplier_proposal.class.php
@@ -13,7 +13,7 @@
  * Copyright (C) 2014      Marcos García            <marcosgdf@gmail.com>
  * Copyright (C) 2016      Ferran Marcet            <fmarcet@2byte.es>
  * Copyright (C) 2018      Nicolas ZABOURI			<info@inovea-conseil.com>
- * Copyright (C) 2019      Frédéric France          <frederic.france@netlogic.fr>
+ * Copyright (C) 2019-2020 Frédéric France          <frederic.france@netlogic.fr>
  * Copyright (C) 2020		Tobias Sekan			<tobias.sekan@startmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -177,8 +177,6 @@ class SupplierProposal extends CommonObject
 	public $nbtodo;
 	public $nbtodolate;
 
-	public $specimen;
-
 	// Multicurrency
 	/**
 	 * @var int ID