Need a necklace for that special outing? Well, I hope you’ve got your ukulele handy. Popular Science (August, 1942, page 219) gives the following tip:
A five-cent ukulele E string of the catgut type makes an excellent cord for restringing a bead or pearl necklace. Thread the parts on the dry catgut, then soak the ends of the latter for two hours between the folds of a damp cloth before tying the knots at the clasp ends. — K. F. Keith.
Apart from providing a stylish fashion accessory, this Popular Science article might be evidence for the general use of G C E A tuning in 1942, and, perhaps, for the growing use of nylon strings. BTW — how much are single strings sold for these days?