I have an original spare tire strap.  Fortunate for me, the leather is still supple and the strap is usable.  I just applied some leather conditioner to the strap so it appears a little darker than normal.
Note the details of this strap.  The buckle is unique as are the rivets and other details.  This one is in great shape for its age!  More info about spare tire straps in my Original vs Repro Section

I made a big mistake when I sold my last 356 and included much of my library of PORSCHE factory manuals.  So, I have been carefully on the hunt to replace them with excellent condition originals.  Good news, I now have a set of correct parts manuals and a workshop manual!  Photos below and I put some more info in the Documents Section.

Took some updated photos of my tool kit today.  I am really happy with the way it presents itself.  Lots of photos in the Tool Kit section.