I thought it might be from Odhams Press before I even finished reading to the end of your question. Odhams were very big on "compendia of knowledge" type books of the sort you describe and very rarely seem to have a date in them - I've seen loads of them in secondhand bookshops. Perhaps this was to disguise the fact that their books had very long print runs and therefore might not be exactly state of the then art, in the 1940s and 1950s. Still, a lot of the stuff in their books probably didn't change all that quickly, especially not in needlework, though the ones about painting, decorating, and other home repairs are a bit obscure these days. Trimming the edges off your wallpaper and all that. There are an awful lot of them still about and any value in them would most likely be whether you found the information interesting or useful. These books, however, will always tell you how to do things at a basic level unlike their modern equivalents which all too often end up telling you to get expensive equipment you shouldn't really need, such as buying a knitting machine to knit a scarf. They were written in a very practical age and it's a pity this is often forgotten these days in a more throwaway society.