It seems that Rover nibs were manufactured in Bologna by Roberto Verlicchi ( hence, RO VER ) and were used for many years as replacement nibs for many, many other brands, although there are also ROVER branded pens.
I couldnít find ROVER listed under italian brands over at ACCADEMIA ITALIANA DELLA PENNA STILOGRAFICA .
In regard to ASCO, as we all know, was one of Autoraís sub-brand . The other one, was OLO .
A few ASCO models ( I couldnít identify the original poster penís model )