I’ve started sorting through my collection of DEC PRO-350 and PRO-380 equipment.
As part of this exercise, I will be imaging any original DEC floppy disks that I locate.
I have today imaged a set of 8 disks which appear to be the installation disks for V1.5 of P/OS. I have not yet checked these against the documentation, so I don’t know if it is a complete set.
Here’s a link to the disk images -> DEC Professional 300 Series