The From the Anvil Large Internal Letter Plate Cover Pewter reduces drafts and helps to tidy up and improve the inside view of your door. The letterplate cover has a 355mm x 127mm overall size and is sold individually complete with fixings. There is a matching letterplate to use on the outside of your door and this can be found in the related products. Pewter Letterplate Cover The cover has a pewter patina finish - this has anti-corrosion properties and can be used internally or externally. To remove dirt deposits, simply wipe over with a lightly oiled cloth from time-to-time and this will ...