New entry into my gallery

This reply is on the understanding that you haven't actually bought a Rembrandt.....<div> </div><div>First, dust the painting gently with a duster, to remove all cobwebs and clag that always collects in the corners of the frame.  Or take a soft, dry paintbrush and &quot;feather-duster&quot; it clean. <div> </div><div>Carefully remove old varnish and dirt, with cotton wool dipped in Mineral Spirits/Rectified Turps/Low Odour Thinners.  You may have to have several GENTLE goes at this, with a fair bit of clean cotton wool - the amount of dirt you remove could be quite startling - just ensure it's dirt not paint you're taking off.  Be particularly careful if it's a painting on stretched canvas.  Don't scrub - you might remove glazes - stroke the dirt away.  </div><div> </div><div>Stop and let the painting &quot;recover&quot; - leave it in an airy room for a few hours.  Then, with your trusty cotton wool dipped into (from experience and preference) Winsor & Newton's Artists' Painting Medium, gently work the oily medium into the surface - the key word here is sparingly (as indeed it says on the bottle).  You can always have another go at it, but don't swamp the painting.  </div><div> </div><div>Leave it for a while, and consider if it needs to be varnished - if it does, well: do; but don't do it just for the sake of it.  </div><div> </div><div>IF AT ALL IN DOUBT about the safety of this process, or the value of the painting, or the stability of the paint, keep the spirits/solvent away from it, dust it carefully (for reasons you'll discover if you don't....), and oil it out, ie just apply the Artists' Painting Medium as suggested.  You can still varnish it if needed, if you only do that.  </div><div> </div><div>Oh, and don't send me the bill for repairing your ruined painting - Errors and Omissions Excepted!</div><div> </div><div> <div> </div><div> </div><div> </div><div> </div></div></div>

Use a Soft and dry brushes remove the dirt accumulated on the painting. This will help in cleaning the painting without damaging it.