B = Broad
BB = Double Broad
BC = Blind cap
BHR = Black hard rubber
BPR = Black precious resin
CF = Capillary filler
CPT = Crome plated trim
CS = Clip screw
ED = Eyedropper
EF = Extra Fine
F = Fine
FPIVM = Fountain pen Information Value model
FU = Filler unit
GF = Gold filled
GFT = Gold filled trim
GS = Grip Section
IF = Ink feed
IM = Iridium
KV = Kinetic Value
KWZ = Ink made by Konrad in Warsaw
LF = Lever filler
LV = Latency Value
M = Medium
MBL = Marble
ml = millilitre
N/A = Not applicable
NB = Nib
NF = Never filled.
NOS = New Old Stock.
OM = Oblique Medium
OB = Oblique Broad
OBB = Oblique Double Broad
OL = Oblique Left
OLI = Oblique Left Italics
PR or Pr = Plunger
PRC = Peoples Republic of China
Pd = Palladium
Pt = Platinum
RG = Rolled gold
Rh = Rhodium
RT = Ring top
Section = Grip Section
SF = Slightly Flexible
SGM = Solid gold mounted
SN = Section
SPT = Silver plated trim
SS = Stainless Steel
TBA = To be advised
TR = Tassie ring
VM = Vermeille
14K/18K/21K = X Carat Alloys of Gold