My quest has ended. On September 27th 1999 I received a California license plate reading 'RFC 822'. I have been looking for this one for years, and a group of people have given me the plate for my 30th birthday. Thankyou.
RFC-822 is the original standard for the format of E-mail messages. It's entry in the rfc-index is :
0822 S D. Crocker, "Standard for the format of ARPA Internet text messages", 08/13/1982. (Pages=47) (Format=.txt) (Obsoletes RFC0733) (STD 11) (Updated by RFC1327, RFC0987)You can read the RFC yourself via for example the RIPE ftp server as ftp://ftp.ripe.net/rfc/rfc822.txt
This is a bit of 'holy grail' for me since I am quite interested in how E-mail works.