As I mentioned last month my wife and I were made very welcome at Henry Ling Printers in Dorchester when I approached them about their involvement in printing the ‘Invisible Ink Puzzle Books’ under the Piccolo imprint in the 1980’s. Click on the photo below to see how we got on.
The delay in this blog was while I tried to find something on the other uses of invisible ink that got mentioned but all came to a dead end so if anyone out there can help ………….?