At PostalAnnex+ in Long Beach, we take professional US passport photos, accepted by passport processing agencies. Most stores accept walk-in's, so no appointment is needed, but call the phone number at the top of the screen for your passport photo needs.
This silver sulphide tarnish can be quite easily removed using polishes that contain abrasives to rub off the silver sulphide, but these have the disadvantage of also removing small amounts of silver. Handily, chemistry provides a method which sidesteps this problem.
Chemical strippers--the preferred method of removing the finish from wood--fall into three categories, each with its own distinct properties and application techniques. All strippers contain caustic chemicals, so follow the manufacturer's recommendations to the letter, and wear heavy-duty rubber gloves and a respirator when using them.