PROGRESS SERIES IV - STANDARD L/H 4 STRING - SPALTED BEECH - Ser. No. 4163
PROGRESS SERIES IV STANDARD 4 STRING - Ser. No. 4350
PROGRESS SERIES IV CUSTOM 4 STRING - Ser. No. 4351
PROGRESS SERIES IV STANDARD 4 STRING - Ser. No. 4301
P SERIES VINTAGE CLASSIC 4 STRING - Ser. No. 4373