Brattle Book Shop owner Ken Gloss has been an appraiser on Antiques Roadshow since 1998. 
Below are just a few of his appraisals. 
Here is a link to all of them.
Podcasts (other than Brattlecast):
- Ken talks to Antiques Roadshow Segment Producer Adam Monahan about Walt Whitman Civil War Letters and how they are rare than we thought. 
- Ken talks to Antiques Roadshow Segment Producer Adam Monahan about Harper Lee. Market Moment 
Past Seasons:
- Robert E. Lee Signed Documents, ca 1840, Louisvill, KY—Aired 2109 
- Abolitionist Diary, ca 1865, Tulsa, OK—Aired 2019 
- “The Personal Memoirs of Ulysses S. Grant, Rochester, MI—Aired January 2019 
- Signed “The Trials of Jimmy Hoffa, Rochester, MI—Aired January 2019 
- Sea Captain’s Journal & Scrimshaw Tooth ca 1840, Sarasota, FL—Aired February, 2019 
- California Gold Rush Letters, ca 1850, Fort Worth—Aired January 9, 2017 
- 1871 Lewis Carroll "Through the Looking Glass, Indianapolis—Aired April 17, 2017 
- Doctor Doolittle Archive, Virginia Beach—Aired May 8, 2017 
- Golden Cockerel Press, 1929-1931, Harrisburg—Aired June 3, 2017 
- Woolworth Anti-Integration Archive, ca 1963, St. Louis—Aired July 8, 2017 
- Trading Ship Documents & Pitcher, Newport—Aired September 18, 2017 
- 1920 Tarzan the Untamed, 1st edition Spokane—Aired January 18, 2016 
- 1881 Indian Chief Letter, Omaha—Aired April 18, 2016 
- 1864 Civil War Education Teacher's Archive, Cleveland—Aired May 24, 2016 
- 1862 Miniature Children's Book, Madison—Aired November 2015 
- Walt Whitman Civil War Letter, Chicago—Aired October 2015 
- 1848 John Phillips 'Mexico' Book, Albuquerque—Aired September 28, 2105 
- Robert Frost Inscribed books, Santa Clara—Aired April 27, 2015 
- Italian Hotel Autograph Book, Santa Clara—Aired April 20, 2015 
- Inscribed To Kill a Mockingbird, Birmingham—Aired April 13, 2015 
- 1968 Bill Clinton Letters, Birmingham—Aired April 6, 2015 
- History of Woman Suffrage Collection, Bismark—Aired February 23, 2015 
- Ken Gloss and Mark Walberg at Fort Abraham Lincoln State Park discuss the books of Elizabeth Custer, Bismark—Aired February 16, 2015 
- Frank Lloyd Wright Archive, Austin—Aired January 26, 2015 
- Confederate Floridian Newspapers, Jacksonville—Aired October 13, 2014 
- Signed Houdini Books, Knoxville—Aired September 22, 2014 
- George Washington Letter, Kansas City—Aired March 31, 2014 
- Civil War Confederate Letters, Baton Rouge—Aired March 24, 2014 
- Freud, Jung, Nijinksi, Detroit—Aired February 10, 2014 
- Uncle Tom's Cabin, Boise—Aired January 13, 2014 
- South Dakota Brand Books, Rapid City—Aired May 6, 2013 
- Adoration of the Mystic Lamb, 1945, Cincinnati— Aired April 1, 2013 
- World War I Air Corps Archive, Corpus Christi—Aired January 21, 2013 
- Tennesee Williams Manuscripts, Rapid City—Aired November 4, 2013 
- The Doves Press Bible, 1903-1905, Minneapolis—Aired May 21, 2012 
- Signed Cormac McCarthy First Editions, El Paso—Aired April 2, 2012 
- New York Daily Advertiser, 1788 -- Aired February 13, 2012 
- Ernest Hemingway signed Hat and Book, ca. 1935 -- Aired April 18, 2011 
- 1623 Shakespeare Partial First Folio -- Aired February 21, 2011 
- 1965 Cormac McCarthy First Editions-- Aired February 14, 2011 
- 1655 Ortelius "Theatro Del Mondo" Atlas, Madison— Aired February 15, 2010 
- Walt Whitman inscribed "Memoranda" in Atlantic City -- Aired January 25, 2010 
- Vintage paperbacks & original cover art in Raleigh -- Aired January 18, 2010 
- United States Secret Service Archive, ca. 1900 in Palm Springs -- Aired January 5, 2009 
- Tasha Tudor Drawing from "Pumpkin Moonshine," ca. 1938 in Las Vegas -- Aired May 26, 2008 
- Abraham Lincoln Letters & Signed Photograph in Spokane -- Aired March 31, 2008 
- 1935 "Porgy & Bess" Book in Salt Lake City -- Aired April 23, 2007 
- Review Edition of "To Kill A Mockingbird, " 1960 in Philadelphia 
 -- Aired February 5, 2007
- 1786 John Francis Journal in Providence -- Aired May 8, 2006 
- Country Store Journals, ca. 1895 in Bismarck -- Aired April 10, 2006 
- 1907 Frank Lloyd Wright Drawings in Omaha -- Aired November 6, 2006 
- Arkansas Territory Council Minutes -- Aired November 3, 2003 
- William S. Burroughs Collection -- Aired October 6, 2003 
- Ross's "Voyage of Discovery," 1819 -- Aired January 27, 2003 
Appraisals by Joyce Kosofsky:
- First printing of the Book of Mormon in Dallas -- Aired January 26, 2009 
- 1787 land deed signed by Benjamin Franklin in Orlando -- Aired February 4, 2010 
- 1861 Letter written by Charles Dickens in Tucson -- Aired June 17, 2007 

 
             
            