Description Overview Three Zinser frames model 319SL, years 1983, 1986, 1988 Two Zinser frames model 319SL, years 1983-1986 One Zinser frame model 421, year 1992 Specifications 812 spindles each for the three model 319SL frames 736 spindles each for the two model 319SL frames 736 spindles for the model 421 frame Ring diameter: 55 mm Gauge: 82.5 mm Features Autodoffing PK 1601 Blower Inverters
