EXHIBIT 24 POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 13th day of February, 1998. ---- -------- /s/ Hartington ----------------------------------- THE MARQUESS OF HARTINGTON POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 5th day of February, 1998. ---- -------- /s/ Gowrie ----------------------------------- THE RT. HON. THE EARL OF GOWRIE POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 13th day of February, 1998. ---- -------- /s/ Max M. Fisher ----------------------------------- MAX M. FISHER POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 10th day of February, 1998. ----- -------- /s/ Walter J.P. Curley ----------------------------------- WALTER J.P. CURLEY POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 2nd day of February, 1998. ----- -------- /s/ Kevin A. Bousquette ----------------------------------- KEVIN A. BOUSQUETTE POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 11th day of February, 1998. ----- -------- /s/ Blakenham ----------------------------------- VISCOUNT BLAKENHAM POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 10th day of February, 1998. ----- -------- /s/ Conrad Black ----------------------------------- CONRAD BLACK POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 11th day of February, 1998. ----- -------- /s/ A. Alfred Taubman ----------------------------------- A. ALFRED TAUBMAN POWER OF ATTORNEY The undersigned, a Director of Sotheby's Holdings, Inc., a Michigan corporation (the "Company"), does hereby constitute and appoint each of Diana D. Brooks and William S. Sheridan with full power of substitution, as his true and lawful attorney and agent to execute in his name and on his behalf, as a Director of the Company, the Company's Annual Report on form 10-K, and any and all amendments thereto to be filed with the Securities and Exchange Commission pursuant to the Securities Exchange Act of 1934, as amended. Each such attorney or agent shall have, and may exercise, all of the powers hereby conferred. IN WITNESS WHEREOF, the undersigned has hereunto subscribed his signature this 3rd day of March, 1998. ---- -------- /s/ Henry R. Kravis ----------------------------------- HENRY R. KRAVIS