I recently purchased several of the Chess Player publications by A.J. Gilliam for reference material on the great cable matches of the late 19th and early 20th centuries. These legendary contests were held annually between the United States and Great Britain.
Each country was represented by the 10 best players that they could produce at the time of the match. The best players were seated at the highest tables and would play each other accordingly in a single game. The winning country was given the coveted Anglo-American trophy.
The method by which moves were communicated between the two countries was through the use of two cables provided by the Post Office. Transmission of the moves could take a few seconds, and in some cases a few minutes. English notation proved ineffective for this type of communication, as many mistakes were made in the relay of information.
Famed chess player and columnist Gustavus C. Reichhelm developed a method of notation specifically for occassions similar to this one. The explanation of his noted method is given below:
The Reichhelm Cable Notation
In compliance with the request of several correspondents we publish the system of notation originated by G. Reichhelm, of Philadelphia. It will be found very ingenious.
The names of the squares are as follows:

It will be seen that the lower half of the board is a repetition of the upper half. Each move is described by two characters, the first describing the piece or Pawn, and the second describing the square.
Now, each piece or Pawn has two character names-upper half name and lower half name, and the names are derived from the squares on which they originally stood, utilizing your adversary’s original square characters to describe your moves on his half of the board.
All moves must be made, calculated, as it were, from white, or lower, side of the board, irrespective of which side has the move. You want to say, K-KB 6 for white. You say” 5 N.”
Now, If black were to play K-KB 6, he would say” UF,” for black’s KB 6 is the same as white’s KB 3. A certain piece to an identical square is described the same way whether white or black makes it.
When a piece or Pawn moves to square in the upper half it takes its upper name, and the same way with the lower half. Thus.a E means QK7, but TE means Q-K 3. In the latter case, the ••T” being the Queen’s lower name, we must seek the E square in the lower half of the board.
We will now describe Mr. Morphy’s (White) celebrated game against the Duke of Brunswick (Black):
5
As only one Pawn can go to 5, one character is sufficient, otherwise MS would mean absolutely KP-K4. A single character is always a Pawn move.
U
EU would be a full description of black’s P-K4.
WF
Namely, W, lower KKt’s name, to F square.
L
4 87
As the Queen’s Bishop enters the lower half, it must take its lower name, “S.”
U
Could also say “DU”, the D being uppername or Queen’s Pawn.
SF
Or, lower name QB goes to F, necessarily taking Knight.
TF U
Or, DU, if spelled out.
V3
Lower name KB, to 3
7N
TB 4E
RC K
3W R
2R R
6R 2D
US
In other words, K-QB square, which means Castles QR.
14
ID ID
XT 4M
6D 7D
42 72
84 mate
Even Pawn promotions are amply provided for D4 means QP Queens.
There are four characters – 9, o, Y, Z – not used in above, and from these twenty different combinations of one or two characters can be derived, thus:
o – Draw proposed.
oo – Draw accepted.
o9 – Draw declined.
oY – Referee decides go on.
oZ – Referee decides stop.
9 - False move, move King.
9o – False move, move piece.
99 – False move, take piece.
9Y – Referee allows claim.
9Z – Referee does not allow claim.
Y – Appeal to referee.
Yo – Referee decides move stands.
Y9 – Referee decides draw.
YY – Referee decides won for you.
YZ – Referee decides won for us.
Z – Resigns.
Zo – Claim game on time limit.
Z9 – Claim of game allowed.
ZY – Claim of game disputed.
ZZ - You’re in error as to time.