Scale of Sketch ... ins. = 1 mile.
When scale is 6 ins. = 1 mile, each small square is 50 yards.
When 3 ins. = 1 mile, each one is 100 yards.
When 6 ins. = 1 mile, V.I. = 10 ft. When 3 ins. = 1 mile, V.I. = 20 ft.
The form of address of the regulation envelope for this message appears below. It is probably best explained by an extract from paragraph 36, Field Service Regulations, which reads as follows: “Messages carried by a messenger are usually enclosed in envelopes properly addressed. The envelope when not marked ‘confidential’ is left unsealed, so that commanders along the line of march may read the contents. Upon the envelope is written the name of the messenger, his time of departure, and rate of speed. The last is indicated as follows: Ordinary, rapid, or urgent. Ordinary means five miles an hour for a mounted man; rapid, about 7 or 8 miles an hour; and urgent, the highest speed consistent with certainty of arrival at destination. The recipient notes the time of receipt upon the envelope and returns the latter to bearer.”
UNITED STATES ARMY FIELD MESSAGE
To . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No . . . . . . . . . . . . . .
(For signal operator only.)
When sent . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . No . . . . . . . . . . . . . .
Rate of speed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Name of Messenger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .