Anna Maria Rocks - 1930s Regal Octophone: can be tuned as tenor guitar, tenor banjo, ukulele, taro patch, tiple, mandolin, Mandola, and mandocello; with case, $995 | Facebook
Regal Octophone Natural | Reverb
National, Dobro and Regal Mandolins, Ukes, Tenor Guitars and Octofone