Does this help:
http://www.internationaljock.com/spe...red,13231.html
The Speedo suits in the photo are classic Lycra 2" racing Speedos (red). This used to be the standard Speedo product in a range of colours.
Speedo appear to have discontinued them concentrating on Endurance in 7cm sides (sometimes 6.5 cm). There are signs that Speedo are introducing a new development in Endurance with more stretch, but I have only seen this in women's suits so far.
For the Lycra suits you may have to search for old stock.