A little quiz - identify the codes [Updated with answers]

Pulled this out of Coin World, so if you have your copy you are disqualified. 
Many coin series have the different varieties identified by a numbering system that starts with a letter. The letter is the initial of the person who set up the system and assigned the numbers. For example, large cents from 1793-1814 are identified by Sheldon number, and are given numbers like S-1. How many of these do you know?
And not all of these relate to regular US coinage, by the way. Don't give away the answers, but answer the poll with your score.
B (three different systems; you need two of the three to count this as correct)
BB
B-G
C
F (not Friedberg)
FS
JR
K
L
M (two different systems, both relating to colonials; give yourself one point for naming either one)
N
S (other than Sheldon)
V
VAM
I'll make up a scoring system:
zero correct - Have you ever read a coin book?
1-3 correct - Your library might need an upgrade.
4-8 correct - You are a very knowledgable collector.
9-11 correct - You have a big library and 30 years experience, I'll bet.
12-14 correct - You are an expert beyond belief, or you are Conder101.
Answers appear a couple posts down.

Many coin series have the different varieties identified by a numbering system that starts with a letter. The letter is the initial of the person who set up the system and assigned the numbers. For example, large cents from 1793-1814 are identified by Sheldon number, and are given numbers like S-1. How many of these do you know?
And not all of these relate to regular US coinage, by the way. Don't give away the answers, but answer the poll with your score.
B (three different systems; you need two of the three to count this as correct)
BB
B-G
C
F (not Friedberg)
FS
JR
K
L
M (two different systems, both relating to colonials; give yourself one point for naming either one)
N
S (other than Sheldon)
V
VAM
I'll make up a scoring system:
zero correct - Have you ever read a coin book?
1-3 correct - Your library might need an upgrade.
4-8 correct - You are a very knowledgable collector.
9-11 correct - You have a big library and 30 years experience, I'll bet.
12-14 correct - You are an expert beyond belief, or you are Conder101.

Answers appear a couple posts down.
New collectors, please educate yourself before spending money on coins; there are people who believe that using numismatic knowledge to rip the naïve is what this hobby is all about.
0
Comments
Here are the answers:
B = M.H. Bolender (early silver dollars), Al Blythe (Seated Liberty half dimes), and A.W. Browning (early quarters)
BB = Dave Bowers/Mark Borckardt, early silver dollars
B-G = Walter Breen/Ron Gillio, California small denomination gold
C - Roger Cohen, half cents
F - Edward Fletcher, Shield nickels
FS - Bill Fivaz/J.T. Stanton, varieties in the Cherrypickers' Guide
JR - John Reich society, early dimes and early half dimes
K - Alan Kessler, Fugio cents
L - Lyman Low, Hard Times tokens
M - Edward Maris (New Jersey coppers) and Henry Miller (Connecticut coppers)
N - Howard Newcomb, large cents 1816-57
S - Snow, FE and Indian cents
V - Daniel Valentine, half dimes
VAM - Leroy Van Allen/George Mallis, Morgan dollars
New collectors, please educate yourself before spending money on coins; there are people who believe that using numismatic knowledge to rip the naïve is what this hobby is all about.
Of course there are also
A=Ahwash (sp) number for Seated dimes
B = Breen numbers for several different series
N = Newlin numbers for half dimes
R = Ryder numbers for Vemont half pence
WB = Wiley-Bugart numbers for Seated Halfs
And in world coins you have
C = Craig numbers Pre 1850 coinage
D = Davenport numbers for Wrld Crowns
D = Davis numbers for nineteenth century british tokens
D&H for Conder tokens
K = Kahn numbers for Chinese coins
KM = Krause-Misler numbers
L = Lamb numbers for Notgeld tokens
M = Mensel numbers for german coins and tokens
P = Pick numbers for world paper currency
S = Schojth number for China
U = Upton numbers for notgeld tokens
Y = Yeoman numbers
And there are others for both US and world but I'd have to look at some references to find them.
Ray
B = Baker numbers for Washington medals
B = Beistle numbers for half dollars
G = Gilbert numbers for half cents
H = Hayes numbers for large cents
H = Haseltine numbers for type coins
Ken Bressett cataloged a series of some kind of tokens and I think he used B for those.
So - Called dollars use HK numbers but I don't remember the names associated with the initials
Farren Zerbe cataloged Letcher (sp) dollars but I don't remember if he used Z numbers, L numbers or just numbers without a letter.