Okay, i need a sign like that for my shop.  Been wanting vintage typewriter signs and such, I think Kirk at Nashville Typewriter scored a Royal Dealer clock.  Incredible.  But perhaps I will make some of my own.

Typewriters seem to be showing up a lot more in the television side of things.  Series of Unfortunate Events on Netflix has had multitudes.  I was also pleased to see a lovely Olympia SM3 in Better Call Saul.

Some of these older skills are still quite handy to have!

It is generally called the drawstrap or drawband.  Super easy to repair, just make sure that yours is intact, unrepaired, and retains the mounting hardware on either end.  Sometimes I see drawbands that have been stitched in the middle which can make them a bit too short to function properly.  I assume you are reusing the original?  When rewinding the mainspring on a standard desktop, usually the carriage is pulled with about 2 pounds of force.

A lot of newer or euro machines have small hair torsion springs that hold the ribbon advance pawls to the gearing.  Those springs can come undone, common on machines like the Hermes Baby.  Double check that all the pawls are indeed springy.