NikonWeb has another excellent article on the history of the first Nikon digital camera (the QV-1000C) with many interesting stories, including this one from Kenji Toyoda (the planning manager in charge of the QV-1000C):
"It was in 1988. Just before my visit to Photokina, I talked with a chief editor of a Japanese photographic magazine, a friend of mine, and made a secret plan that I would take pictures of Photokina exhibition with the QV-1000C and immediately transmit them to Japan to put them on his magazine with my brief report.
But when I arrived at Cologne, I was told we are prohibited from transmitting any pictures with QV-1010T because we had not got the certification of German regulation for communication equipments.
It was so valuable a chance to show the advantages of an electronic camera, that we could hardly give it up. So, I told the engineers who accompanied me "OK, let's go on as planned. I will take all the responsibility".
After looking around the exhibition and taking pictures with QV-1000C, two engineers came to my hotel room and began the secret work. The room telephone set was almost thoroughly disassembled to connect the line from the transmitter. They called Nikon factory in Ohi, Tokyo and tried to send the pictures while talking with the engineers there. But it could not easily done because of the telephone line condition between Germany and Japan and took almost whole night until we finally succeeded."
Update: here is a sample photo taken with the Nikon QV-1000C.