Model U-192 (outside) and U-193 (inside).
This top quality foot set will fit Industrial Walking Foot Machines :
Artisan : 797AB
Brother : B797
Chandler : DY-337, DY-349
Consew : 205RB
Juki : DU-141
Mitsubishi : DY-330, DY-337, DY-340, DY-349, DY-350, LY-3300
Nakajima : DBU-180L, 181L