Many thanks for all your ideas and input on this subject fella's, In an Osprey ( and backed up by the superb ref from Tinhat) it mentions that the Egyptian forces were issued around 1989 a new desert pattern uniform and helmet cover, the cover was designed to fit the Russian issued Ssh-68 helmet, very much the same shape helmet as the Czech model, could be a coincidence but it makes perfect sense to me,that the Czech forces would have got hold of some Egyptian covers and customised them !!
I totally agree with you all on the "hand drawn" look of the Czech covers in the ref pic. Looks like the Czech troops got crazy with a sharpie!
I guess the other theory could be the covers are the Czech hood's used as covers , and maybe bleached and hand drawn camo applied in the field ( or sandpit!) I would be keen to find out.
Thanks again guys, I appreciate your input and opinions !