Historical clue formulations

• Kind of number on an old business card — 2026-02-16
• Phone-y document? — 2022-08-11
• Transmission by telephone — 2021-04-19
• Copier option — 2019-06-12
• Kind of number not much seen nowadays — 2018-10-14
• Kind of paper — 2018-06-10
• Obsolescent means of sending a document — 2016-06-14
• Office page? — 2016-05-20
• Listing on a Rolodex — 2016-04-08
• Obsolescent means of communication — 2015-05-18
• E-mail alternative — 2011-08-14
• Business card number — 2009-09-02
• Transmit electronically — 2009-06-10
• ___ number — 2009-05-24
• Kind of paper — 2009-02-21
• Kind of number — 2007-03-15
• Quick message — 2005-02-17
• Send via phone line — 2003-05-06
• Kind of number — 2000-10-07
• Phone transmission — 1999-10-25
• Kind of paper — 1999-08-27
• Feature of some modems — 1998-05-03
• Certain letter — 1997-05-18
• Business message — 1995-08-19