1989s were the first Marin bikes I saw, I guess that was the first time a store in my town (Eastbourne) stocked them. I distinctly remember the black and gold BVs and the glossy grey/neon orange Pines. First one I owned was a 1990 BV, a friend's sister was going out with the guy who owned ATB sales in Hastings (Bexhill?), they were the UK distributor. He gave her a bike, they split up and she sold it to me - 400 quid, seemed like a fortune at the time, but worth every penny.
The earliest I've seen was a 1986 that came into a store I was wrenching at a couple of years ago, I forget the model, it was yellow, with very skinny tubes and tiny black Marin decals. The owner said he bought it straight from the factory while living in Norcal and had never owned another bike in over 20 years!
Thanks for the scans Juice, consider the cockles of my heart completely warmed.