<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; "><div><div>Paul,</div><div><br></div><div>On 8 Jan 2016, at 11:24 AM, Paul Koning wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><br><blockquote type="cite">On Jan 8, 2016, at 2:13 PM, Clem Cole <<a href="mailto:clemc@ccc.com">clemc@ccc.com</a>> wrote:<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I asked our (Intel's) corporate librarians to see if they could find X3.27-xxx and in particular -1969 (the original) and -1978 which was version 3. I agree with Paul, that V3 (-1978) was the version that most people implemented. I seems to remember that, VMS started with V2 and upgraded to 3 - as I remember on VAX Serial #1 trying to read tapes from it on the 360 or the Univac was funky.<br></blockquote><blockquote type="cite"><br></blockquote><blockquote type="cite">I wish I could remember what changed between the versions. I once knew, and I've sent a note to one of my old housemates that wrote some of the VMS tape support years ago. He might remember/have some of this stuff.<br></blockquote><br>I think, but this is a *very* vague memory, that one of the later additions was the addition of the century number to the date fields. Originally, ANSI labels were not Y2K compliant.<br><br><span class="Apple-tab-span" style="white-space:pre"> </span>paul<br><br></div></blockquote></div><div><br></div>That is correct. In X3.27-1978 (version 3) and earlier, date fields are 6 characters " YYDDD". The first character must be a space. In X3.27-1987 (version 4), the first character in date fields is either a space or a 0. " YYDDD" are 19YY dates, "0YYDDD" are 20YY dates.<div><br></div><div>I have paper copies of -1978 and -1987. I don't think it's legal to put them up on bitsavers, though. I think you still have to purchase copies from whoever publishes them now.</div><div><br><div><div><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: 'Helvetica Neue'; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; font-size: medium; ">Larry Baker<br>US Geological Survey<br>650-329-5608<br><a href="mailto:baker@usgs.gov">baker@usgs.gov</a><br><br></span></div><div></div></div></div></body></html>