We're huge fans of Fender at Original Fuzz. They might not always have the best build quality from year to year, but they've built an amazing brand that has helped define much of the music that we enjoy, from Buddy Holly to Television to Nirvana.
They've always been a good reference point for mid-century industrial design. The Fender logo is iconic and they ran some interesting ads in the 1960s that helped establish them as a classic American brand.
Here's a collection of vintage print ads from that era. Most of them were a part of their "You won't part with yours either" campaign by Bob Perine.