Before there were Hurricane clips/straps builders used toe nails. Some realized that additional strength was needed. At times it was a standard building practice. We have whole neighborhoods with those.
Plumbers strap on a exterior wood framed wall with the strap nailed to the top plates of the wall system. Have seen this a number of times on older (70-75) construction. Not sure how to identify it on the form thought as one can not see the fastening connections.