Here's a scan - and special bonus audio tracks - of a brochure and 7" record I found on ebay recently: http://chiclassiccomp.org/docs/index.php?dir=%2Fcomputing/EG%26G "Data on a Platter" from a company called EG&G (anyone heard of them?) describes their vinyl (as in analog audio record) data storage scheme and how it will fit into your business. There's no date anywhere but the brochure is a great example of 60s typefaces, not to mention language. The recording includes examples of how the data sounds if played on a regular phonograph. Who's up for decoding it? -j