Thanks to @HughofAvalon for pointing out that the Explanatory Catechism, about which I blogged earlier, is available online here, branded as the Complete Catholic Handbook (for reasons which are opaque to me).
I haven't checked every detail, but this looks to be a faithful reproduction of the book I mentioned.
However, it does not include the extensive (and very useful) appendices; these cover a huge range of things, from the principle heresies to morning and night prayers.
But what is here is very good: the Penny Catechism with explanatory notes: worth a bookmark, I'd suggest.
UPDATE: White Pontifical Vestments Project - Good news. We are alllllmost there. We have hit our goal. Now I want to exceed our goal… with your help. I am so very grateful to all of you who helped...
9 hours ago