Hello,
I've not got a boot disk for a PcW 10, but if need be, maybe I could make you one?
I've looked up about this machine, and the info seems to be a little confused. For example, the Dutch Joyce Club site says some things about the PcW 10 which I think are WRONG, and may well correctly refer to the PcW 16.
John Elliott's information appears to be different, and should be more reliable. His Joyce emulator includes the PcW 10, and does NOT include the PcW 16.
Therefore, I'd expect that the PcW 10 uses 720k format 3.5" disks, which may well be similar to PCW 9256 or 9512.
I take it from your message that you do not have any disks.
Given what you say about the state of the machine, I think you need to see if the disk drive is working first. The 'usual problem' with the PCWs, the rubber drive band going to goo, will not apply, but the 3.5" drive can still be upset with dust etc, but usually this can be cleared with a good blow! There are two led sensors regarding disk in, and disk moving, that can get dusted up to they don't register, also the stepper mechanism can not work correctly, but this latter can often be overcome after many retries. PCs can have the same troubles, I've often got a machine to work with a good blow!
John Elliot's pages include a chart of system versions, and there are some listed as being appropriate for the PcW 10. I don't know if a FID extension is needed for the 3.5" boot, but this system may be capable of getting started on the basis of the data in the first sector of the disk.
Anyway, you've noted what happens if you try to start the machine with no disk in the drive. What happens if you try with a 3.5" disk in (any disk). Does it try to do more. I could easily send you a possible boot disk and see what happens with that (correct format, boot code, .EMS and/or .EMT file.
Some info on the web suggests that the PcW 10 should be VERY similar to the PCW 9256, just using a 3.5" disk instead of the 3" disk (although there are some other differences, but not relevant to the boot). So, if a disk image for the 9??? series can be found (I might have one of them ?) then it may be just a matter of copying files to a 3.5" disk?
Geoff