This is going to be a slow one, but might as well get the thread started.
I bought this frame in the summer of 1992 and built it up with maximum 3DV. I found some serial number information on http://www.merlinbike.com
(The site is a bit flakey so you may or may not actually see anything if you go there), which indicates this frame was made in 1991.
3605- 6353 (1991)
9949-10757 and C002-C039 (1994)
10758-11568 and XM009-XM033 plus C040-c081 (1995)
11569-13111 and C082-C235 plus XM 034-XM268 (1996)
It's seen several upgrades and downgrades and served as my go-to commuter for many years, but it is now slated for a retrobike-worthy rebuild.
Here's an old snap shot:Tentative spec sheet
.... as you can see most of it is blank or has a question mark. My current vision is a bit blurry, but I'm leaning towards WTB dirt drop bars, front and rear custom roller cam brakes (I'm calling these Classen Speedmaster Brakes). Since the genuine Cunningham rollercams routinely fetch $900-$1000USD on ebay I thought I'd make my own (more details to follow).
I think I'll call it a "Merlinham" or maybe a "Merlingham"
Frame: Merlin Mountain
Year: 1991 (serial #3899)
Fork: Potts type II
Headset: Black 1" Chris King
Stem: Clockwork Bikes reproduction LD
Handlebar: Specialized/WTB Dirt Drop
Brakes: Classen Speedmaster (my custom take on the classic WTB Speedmaster)
Brake Pads: ?
Brake Cables: ?
Cantilever cable hangers: n
Front Derailleur: M-900 XTR
Rear Derailleur: M-900 XTR
Cranks: Morati Titanium
Crank Bolts: Ritchey Titanium
Chainring bolts: SRP
Bottom Bracket: WTB Integrated Grease Guard (new Phill Wood Titanium spindle and bearing installed by Mike @BMC)
Seatpost: 27.2 x 400 mm IRD
Seatpost Binder: Black Ringle