diff --git a/LocomotivesAdvanced/LocomotivesAdvanced/FormMapWithSetLocomotives.cs b/LocomotivesAdvanced/LocomotivesAdvanced/FormMapWithSetLocomotives.cs
index 639a407..9183d31 100644
--- a/LocomotivesAdvanced/LocomotivesAdvanced/FormMapWithSetLocomotives.cs
+++ b/LocomotivesAdvanced/LocomotivesAdvanced/FormMapWithSetLocomotives.cs
@@ -152,11 +152,11 @@
                 return;
             }
             int pos = Convert.ToInt32(maskedTextBoxPosition.Text);
-            DrawningObjectLocomotive removableObject = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty] - pos;
-            if (removableObject != null)
+            var removableObject = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty, pos];
+            if (_mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty] - pos != null)
             {
                 MessageBox.Show("Объект удален");
-                _mapsCollection.RemovedObject = removableObject;
+                _mapsCollection.RemovedObject = (DrawningObjectLocomotive)removableObject;
                 pictureBoxLocomotives.Image = _mapsCollection[listBoxMaps.SelectedItem?.ToString() ?? string.Empty].ShowSet();
             }
             else
@@ -230,11 +230,13 @@
         {
             if (_mapsCollection.RemovedObject == null)
             {
+                MessageBox.Show("Коллекция удалённых элементов пуста");
                 return;
             }
             FormLocomotive formWithLastRemovedObject = new(_mapsCollection.RemovedObject._locomotive);
             formWithLastRemovedObject.Show();
             formWithLastRemovedObject.Draw();
+            _mapsCollection.RemoveLastObject();
         }
     }
 }
diff --git a/LocomotivesAdvanced/LocomotivesAdvanced/MapsCollection.cs b/LocomotivesAdvanced/LocomotivesAdvanced/MapsCollection.cs
index 6a8dbb9..3394c2c 100644
--- a/LocomotivesAdvanced/LocomotivesAdvanced/MapsCollection.cs
+++ b/LocomotivesAdvanced/LocomotivesAdvanced/MapsCollection.cs
@@ -107,9 +107,14 @@
                 {
                     return null;
                 }
-                return _removedObjects.Last.Value;
+                var removedObject = _removedObjects.Last();
+                return removedObject;
             }
         }
+        public void RemoveLastObject()
+        {
+            _removedObjects.RemoveLast();
+        }
     }
 
 }