Radiance

If you look closely at the saucers in this group you will see that the pattern is different from the plates, more a zig zag sort of form. I think it is actually a variation of "Frisco Brown". I have seen dessert bowls with this on the base as well,

Yes, I can see the zig zag pattern in the same tonings as the plates.
I had a Frisco Brown plate in the 70's the same as your other pic
I was going to get the whole set but didn't ... I'm sure the saucers were zig zag too.

Radiance 653

Database has two Frisco ..... can't tell if any are the Brown unfortunately!
Frisco 30
Frisco 473

By chance I saw that the plain gold with brown band like Radiance is called Sahara.

It was advertised alongside Radiance, back in the day

Haven't checked the Database yet to see if it's there.

Hi Ev, here is a link to a Trademe ad showing Frisco with the backstamp, cheers marl http://www.trademe.co.nz/Browse/Listing.aspx?id=525236898

YES! So mine are d473. Thanks for your vigilance on Trade Me.