357: SUPERTONE, acoustic parlor guitars, set of two < Rock Style from The Boyd Collection, 27 June 2019 < Auctions | Wright: Auctions of Art and Design
Supertone Parlor acoustic 1930s Mahogany | Reverb Deutschland
Pre War Harmony Supertone Parlor Guitar with metal adjustable bridge | eBay
c. 1930 Harmony Supertone 217 - Folkway Music - YouTube
1929 Sears Supertone | eBay
Vintage 1920s/30s Supertone Rope Parlor Acoustic Guitar USA Harmony Regal Restored Player | Reverb
Circa 1920s Supertone Concert Model – StayGoldGuitars
Baxendale '20s Supertone Parlor Conversion – Telluride Music Co.
1939 Harmony H1248 (Supertone) Spanish Electric – Garrett Park Guitars