The message
from Andy Burns contains these words:

They were all left out of our house when it was built around 1970. It's
still up.

Yep, roughly same age of house here, has got the "longitudinal binders"
but nothing corresponding to the "diagonal wind brace" or "chevron braces"

To be fair, ours is probably adequately supported by the concrete walls
between houses in the terrace.

--
Skipweasel
Pay no attention to that man behind the curtain.