The M205 was released in the early 2000’s as demonstrator variants followed by the black, red, and white models in 2009.  These pens are the also the same size as the M200/400.  There is only one trim variant of the M205 since it was released after the 1997 trim change.  These pens are distinguished from the M200 because of their rhodium trim and different color patterns.  The M205 pens have a crown cap top, rhodium colored trim, trim ring at the piston knob, and a single cap band.  The nibs of these pens are stainless steel.  1.20ml ink capacity.

 

Total Length	Barrel Length	Cap Length	Posted Length	Diameter	Weight
4.92 in	3.23 in	2.20 in	5.71 in	0.46 in	0.49 oz

 

Barrel Color	Cap Color
Clear Transparent Demo. (2005)	Clear Transparent Demo.
Red (2009)	Red
White (2009)	White
Black (2009)	Black
Taupe (2012 §)	Taupe
Light Blue Transparent Demo. (2009)*	Light Blue Transparent Demo.
Neon Yellow DUO Highlighter Demo. (2010)	Neon Yellow DUO Highlighter Demo.
Neon Green DUO Highlighter Demo. (2013)	Neon Green DUO Highlighter Demo.
Amethyst Demo. (2015 §)♦	Amethyst Demo.
Blue Transparent Demo. (2016 §)**	Blue Transparent Demo.
Aquamarine Demo. (2016 §)♦	Aquamarine Demo.
Blue Marbled (2016)	Black
Clear Demo. (2018 §)	Clear Demo.
Olivine Demo. (2018 §)♦	Olivine Demo.
Star Ruby Demo. (2019 §)♦	Star Ruby Demo.
Moonstone Demo. (2020 §)♦	Moonstone Demo.
Petrol Marbled (2021 §)♦	Black
Neon Yellow DUO Highlighter Demo. (2021 §)♦	Neon Yellow DUO Highlighter Demo.

§ Denotes special edition release

*Found in two variations, one with a black internal piston mechanism and one with a white/light grey internal piston mechanism.

**Re-release of the 2009 model which is identical in styling with the exception of the chromium trimmed crown cap top.

♦Special edition model starting in 2015 and designed to emulate the corresponding year’s Edelstein Ink of the Year release.