Modifiche

First [[Olo]] models were safeties similar to [[R.A.|R.A.3]]  (with clip) and  [[R.A.|R.A.0]] (with ring), however, marked with the [[Olo]] logo (an ellipsoid squared with the ''OLO'' inscription inside) both on the nib and on the pen body and on the cap top. These were produced also in laminated gold [[overlay]]s (marked ''18 KR'') always in the two previous measures, respectively called ''Type 3'' and ''Type 0'', and with two filling systems: [[safety]] and [[button filler]], the latter resumed shapes and clip of the [[A.R.A.|A.R.A. 15]], even if the decorations used for the [[overlay]] are different from those of the [[Aurora]] models.

First ''Olo'' models were safeties similar to [[R.A.|R.A.3]]  (with clip) and  [[R.A.|R.A.0]] (with ring), however, marked with the ''Olo'' logo (an ellipsoid squared with the ''OLO'' inscription inside) both on the nib and on the pen body and on the cap top. These were produced also in laminated gold [[overlay]]s (marked ''18 KR'') always in the two previous measures, respectively called ''Type 3'' and ''Type 0'', and with two filling systems: [[safety]] and [[button filler]], the latter resumed shapes and clip of the [[A.R.A.|A.R.A. 15]], even if the decorations used for the [[overlay]] are different from those of the [[Aurora]] models.