Telegraphy the sense of a system that can transmit arbitrary messages over arbitrary distances. Lines of signalling relay stations can send messages to any required distance, but all these systems are limited to one extent or another in the range of messages that they can send. A system like flag semaphore, with an alphabetic code, can certainly send any given message, but the system is designed for short-range communication between two persons. An engine order telegraph, used to send instructions from the bridge of a ship to the engine room, fails to meet both criteria; it has a limited distance and
Flags of counties of the United States created by foreign entities, such as the College of Arms in the United Kingdom. Many Floridian county flags feature their county seals on a saltire, incorporating elements from the Floridian flag, itself based on the former Spanish flag, into their designs. Several Maryland county flags, such as the flags of Calvert County, Baltimore County, and Anne Arundel County, incorporate the coat of arms of the Calvert family in their designs, due to the design being featured in the Maryland state flag, and the Calvert family's prominence in Maryland history. Howard County's flag also incorporates design cues from the Maryland state