You may be thinking that plans published in a guitar mag in 1976 aren’t quite old enough to qualify as “historic”. These plans are special though, because these are the ones that Shane Speal used to build his first cigar box guitar… and from that first cigar box guitar, he went on to jump-start the entire modern cigar box guitar revival.
This article on how to build a cigar box ukulele comes from the June, 1917 edition of Popular Mechanics. In it S. H. Samuels walks the reader through the basics of constructing a uke, which in 1917 “was made at a cost of 30 cents, by careful selection of materials from the shop scrap stock.”
Click on the image below to view the printable PDF document for these plans. They were published in the February-March 1948 edition of the Science and Mechanics magazine. If you want to see an old movie of W. C. Fields having an energetic time with a similar instrument, check out this video post on Cigar Box Nation.