URL=http://www.seasip.info/VintagePC/quattro.html
URL=http://vintage-icl-computers.com


Some History. 
I git a bootdisk and with the MFM-Emu from David Geschwine  we managed to read 
the mfm harddisk and to write the image to a second one.



I'm sorry for a long time before I wrote the answer for you.
Yes, I managed to get the operating system for the computer ICL QUATTRO.
Operating System CCP / M86 I received from Mr. Jon Hales of England.
I am very thankful that he helped me and sent me a floppy disk images for ICL QUATTRO.
Operating System CCP / M86 PC ICL QUATTRO I searched for
almost 15 years.
On the website, there is no option to download the operating
system, or floppy disk image ICL.
Ready to help you and send you the floppy disk images during the day tomorrow.
Operating system version to send the Concurrent CP / M86 version 3.1s (issue 1)
The operating system was designed for PC ICL model 39, but also works on ICL QUATTRO.
System Version 3.1s (issue 1) support hard disk drives
RODIME - 5 megabytes, 10 megabytes, 20 megabytes and MICROSCIENCE 1324 - 50 megabytes