I have not attempted to clean these with anything. Letter opener seems to have some rust on it. If you would like more pictures or more information, please dont hesitate to ask. 9-1/4 wide, trinket box 3-1/4, letter opener 8-1/4, calendar holder 4-1/2, pen holder 4-1/2, inkwell 4 and letter holder 4-1/2 wide.The item "Vtg Antique Jennings Brothers Desk Set Viking Ship Boat Inkwell Letter Opener" is in sale since Tuesday, March 23, 2021. This item is in the category "Collectibles\Pens & Writing Instruments\Inkwells". The seller is "hhidilynn11" and is located in Warrenton, Virginia. This item can be shipped to United States.