| red label viola sets | |||||
| Model Number | Strings | Make | Size | Gauge | Tension |
| 4106 | A, D, G, C | Nickel | Standard (15-16 1/2”) | Soft | |
| 4107 | A, D, G, C | Nickel | Standard (15-16 1/2”) | Medium | |
| 4108 | A, D, G, C | Nickel | Standard (15-16 1/2”) | Orchestra Gauge | |
| 4105 | A, D, G, C | Nickel | Intermediate (14”) | Orchestra Gauge | |
| 4104 | A, D, G, C | Nickel | Junior (13”) | Orchestra Gauge | |
| 4103 | A, D, G, C | Nickel | Mini (12”) | Orchestra Gauge | |
| 4102 | A, D, G, C | Nickel | Sub-mini (11”) | Orchestra Gauge | |
| red label viola single strings | |||||
| Model Number | Strings | Make | Size | Gauge | Tension |
| 4116 | A | Nickel | Standard (15-16 1/2”) | Soft | 16.7 |
| 4117 | A | Nickel | Standard (15-16 1/2”) | Medium | 19.5 |
| 4118 | A | Nickel | Standard (15-16 1/2”) | Orchestra Gauge | 20.1 |
| 4115 | A | Nickel | Intermediate (14”) | Orchestra Gauge | |
| 4114 | A | Nickel | Junior (13”) | Orchestra Gauge | |
| 4113 | A | Nickel | Mini (12”) | Orchestra Gauge | |
| 4112 | A | Nickel | Sub-mini (11”) | Orchestra Gauge | |
| 4126 | D | Nickel | Standard (15-16 1/2”) | Soft | 16.8 |
| 4127 | D | Nickel | Standard (15-16 1/2”) | Medium | 17 |
| 4128 | D | Nickel | Standard (15-16 1/2”) | Orchestra Gauge | 17.3 |
| 4125 | D | Nickel | Intermediate (14”) | Orchestra Gauge | |
| 4124 | D | Nickel | Junior (13”) | Orchestra Gauge | |
| 4123 | D | Nickel | Mini (12”) | Orchestra Gauge | |
| 4122 | D | Nickel | Sub-mini (11”) | Orchestra Gauge | |
| 4136 | G | Nickel | Standard (15-16 1/2”) | Soft | 13.7 |
| 4137 | G | Nickel | Standard (15-16 1/2”) | Medium | 14.7 |
| 4138 | G | Nickel | Standard (15-16 1/2”) | Orchestra Gauge | 15.5 |
| 4135 | G | Nickel | Intermediate (14”) | Orchestra Gauge | |
| 4134 | G | Nickel | Junior (13”) | Orchestra Gauge | |
| 4133 | G | Nickel | Mini (12”) | Orchestra Gauge | |
| 4132 | G | Nickel | Sub-mini (11”) | Orchestra Gauge | |
| 4146 | C | Nickel | Standard (15-16 1/2”) | Soft | 11.7 |
| 4147 | C | Nickel | Standard (15-16 1/2”) | Medium | 10.9 |
| 4148 | C | Nickel | Standard (15-16 1/2”) | Orchestra Gauge | 12.8 |
| 4145 | C | Nickel | Intermediate (14”) | Orchestra Gauge | |
| 4144 | C | Nickel | Junior (13”) | Orchestra Gauge | |
| 4143 | C | Nickel | Mini (12”) | Orchestra Gauge | |
| 4142 | C | Nickel | Sub-mini (11”) | Orchestra Gauge | |
