I've seen a guitar similar to that, but never a mandolin.
Supposedly Knutson only built three of these — it’s been with my luthier for about a month — finally got her back — I pushed her to the limit yesterday— I have never had an emando that handles guitar pedals as well as this — here’s the evaluation track —
'ASHO(clam) Farewell' 4 days
'Weber "Rawhide"' 8 days
'Funeral for a Gunfighter' 10 days
'NEW PRICE: Gibson H1 Mandola' 11 days
'Weber Bitterroot F Mandolin' 12 days