NEW 2020 Custom Shop Herringbone D-18 14 fret with my specs. 
Weight: 4 lbs 3oz
 
This guitar is made from Sinker Mahogany, a rare & highly prized tonewood. Several hundred years ago in Belize, Central America, mahogany trees were harvested to make sailing ships. During transportation by river, some of these enormous tree logs would sink to the bottom. Here they have lain for a very long time .... Now retrieved & repurposed, this tonewood is nothing short of spectacular. We encourage you to play & compare this guitar to others in-store. Sonically it is like no other. Sinker yields a surprising amount of bass for mahogany. Each string is superbly balanced & notes sing & resonate in every position up & down the neck. It is said that the mahogany used for the building of guitars during C.F. Martin's classic 'Golden Era' years of production originated from the same geographical area as this Sinker Mahogany.
 
serial #2414215 CFM CS part # C20-021530
 
thin satin finish (thinner than standard gloss finish to allow body to vibrate more freely than thick gloss finish)
back & sides "sinker mahogany" selected by D-Town Guitars 
NO PICK GUARD, my idea is that the pickguard dampens the vibration of the top which is not a new idea but you never see Martin guitars without the pickguard
"Alternate Torch" head stock abalone overlay
Fingerboard inlays - Old Style 18
Fingerboard Radius: 16''
Fingerboard Width at Nut: 1 3/4"
Fingerboard Width at 12th Fret: 2 1/8"
Standard CFM fret wire
String Spacing: 2 5/32''
Neck Profile: Modified Low Oval
Neck Taper: High Performance Taper
Fingerboard Material: Black Ebony grade 3
Scalloped bracing
Top Material: Sitka Spruce X braced forward shifted
Scale Length: 25.4" - Compensated Scale Length: 25.470"
Grover Nickel V97-18NA StaTite 18:1 Vintage Button