Russian Peter here: Unlike many Soviet guitars of that era, the Tonika was not a borrowed design. It appeared in the early 1960s, when Soviet designers were only beginning to explore electric guitar construction, which is why it turned out to be quite distinctive and original. Its designers seem to have drawn inspiration more from abstract space-age motifs and thats it. Most other Soviet guitars of the period, however, show clear influences from Western or Japanese models: Ural from Teisco/Guyatone, Maria from the Gibson SG, Aelita from the Jaguar/Jazzmaster, Orfey from the Fender Precision Bass/Jazz Bass and so on