I would guess this dates to the 1950s, but an internet search provides no information. Perhaps a Tiffany collector will be able to date it from the 614 number. The magnifying glass lens is totally clear and un-marked. The sterling silver is free from any tarnishing. Length is 9 (22.9 cm).The item "TIFFANY & COMPANY STERLING SILVER LETTER OPENER & MAGNIFYING GLASS" is in sale since Thursday, October 1, 2020. This item is in the category "Antiques\Silver\Sterling Silver (.925)\Other Antique Sterling Silver". The seller is "wraith39" and is located in Oyster Bay, New York. This item can be shipped to United States.