If your office still uses internal mail, with those special envelopes that have people’s names crossed out as they wend their way round an organisation, you are in a corporate period drama.But most offices still retain clues to the historical importance of paper.Photocopiers, scanners, shredders, guillotines and unfeasibly large staplers are echoes of a not-too-distant time when physical documents were a vital currency, when people assembled in a single room and shared ideas on pieces of paper.In-trays and out-trays are visible reminders of how information used to flow within organisations.Noticeboards and business cards were once the best ways to convey news and contact details.Forecasts of the paperless office have been around for decades; they are not about to come true now.But the stationery cupboard will be less well stocked in future.Meetings between people in the office and those working remotely rely today on platforms like Zoom or Microsoft Teams.Hunt around, though, and you may find an object that was seen as useful back in those dim and distant days of 2019: the conference-call speakerphone.Looking a bit like a small spacecraft, this phone had to be plugged into a socket to work.Lights would suddenly blink, and people would murmur in awe.Someone would dial in, each button-press a loud beep.They would inevitably hit the wrong one at some point and have to start again.These rituals and others are now rarely performed; the phones themselves are gathering dust on shelves, left behind by better technology and the abrupt rise of remote working.The very layout of many offices is a throwback to a pre-pandemic age.