Hi James, I didn't make myself clear there. As you say, it isn't a 7, though 7 is the character which is almost always used in typewritten Irish these days, as it looks very similar. In emails, I would usually use a 7 rather than an ampersand when writing 'agus'. This character which stands for 'agus' has been in use for a long time in Irish and I have always presumed that it probably predates the use of Arabic numerals by hundreds of years, but. I must admit, I had never heard of the name Tironian 'et' and I didn't know that it isn't specifically Irish, so thanks for the heads-up on that! Apparently it was a form of shorthand invented by Marcus Tullius Tiro, Cicero's scribe.