Pickguard Planet - Mark Farner from Grand Funk...Messenger Guitar, don't know much about these guitars but the company's address was on New Montgomery St. in San Francisco...just a couple of miles from
Eastwood Guitars And Airline Guitars - The Eastwood Messenger. Great not just for fans of Mark Farner / Grand Funk Railroad... even Ira Kaplan of @therealylt used to play one. 🙌 #eastwoodmessenger #
DEMO: The Eastwood Messenger! Iconic Mark Farner Tones! - YouTube
iconic guitar.com: Mark Farner - 1967 Messenger
The Unique Guitar Blog: More Metal Necks - Messenger Guitars and Kramer Guitars
Centaur Guitar - Here's one that came by the shop a few years ago a Messenger guitar! Made famous by Mark Farner from Grand Funk Railroad! Messenger guitars were built in Astoria,