OLD TIME OPEN BACK BANJOS AND TONE RINGS – Bucks County Folk Music Shop
Tone ringy | Průcha Bluegrass Instruments
Pisgah 6 String Banjo with Cherry Neck and Tubaphone Tone Ring – Banjo Studio
Gold Tone OT-700A/L Left Handed Old-Time A-Scale Tubaphone Clawhammer Banjo w/ C | eBay
Vega TubaPhone #2 Open-Back Banjo- SOLD - Greg Boyd's House of Fine Instruments
Gold Tone Flathead Brass Banjo Tone Ring | OB-250 and OB-3 Ring
Deering Banjos - The Vega No 2 Banjo with the coveted Tubaphone Tone Ring and classic bracket band circling the drum is unquestionably one of the most unique banjos in the history
Tubaphone Tone Ring 11" | Vega Tubaphone Tone Ring | OT-800 Ring
Gold Tone Mastertone Old Time OT-800 Tubaphone-style Banjo - Vintage Brown/High Gloss | Sweetwater
Tonering — J. Romero Banjos - Custom Banjos
Instruments – Tagged "Tubaphone Tone Ring"– Banjo Studio