I don't think they were collated, probably for good reason. Having just read a few of the articles in order to help write this post, the text is probably best glossed over (classic British understatement, for example, "(the London Trained Bands) were described after the colour of their coats") but the illustrations are wonderful.
I've got a handful of MM from the period (mostly those with the Flags and Standards of the ECW series - which are also problematic, but considerably less so).
If it helps June 77 has #2 Newcastle's whitecoats in it. So I'm assuming #1 is May as #5 (Rupert's Cavaliers) appears in September 77.
December 77 no article; April, August, December 78 no article; August 79 no article; August 80 cover has a splash headline 'new series' and the index page has the beautifully oxymoronic phrase 'return of a new series'. The article has a picture of 'NMA redcoat musketeers' the text is, well... if I was polite I would have to say the article is a general introduction to the series.
Artillery feature Sept 80; dragoons and light horse Oct 80; Nov 80 the Trained Bands.