‘Economic’ lace curtains

I love the idea of these ‘economic’ lace curtains, which are advertised in a 1933 Lace Furnishings catalogue. They come in one piece with the valance heading, side curtains and tie backs all attached to each other and ready to hang. The catalogue emphasises that each ‘pair’ is woven in one piece, however it recommends that for cleaning the scallops should be tacked together every 6 inches so they can be dressed in the same way as ordinary curtains. They are 40 inches wide (approximately 1 metre) and 2.5 yards long (about 2.25 metres) so are made for a specific window size, although they could probably be slightly gathered to for a smaller window. Unfortunately the catalogue doesn’t have any prices and I assumed they were labelled ‘economic’ because they didn’t cost much to buy, but the write up says they are ‘most economical in use’ which I assume means that they required less maintenance than the usual window dressings made up of separate curtains, valance and tie backs. They are very pretty though and I would love to have them wafting in the breeze at my window.