The internationally-known London, England printing firm of “Thomas De La Rue & Co.”, prepared plates and stamps for the CSA until a Southern firm was found to take over the work. That firm, Archer & Daly, began producing stamps in 1863. The US blockade of as many Confederate ports as possible often meant that British ships carrying supplies from London, the UK, or the British Empire to the Confederacy – were often intercepted via acts of piracy on the high seas by the US Navy – with the goods confiscated and/or destroyed. The US government was continuously irritated by the continuous (undeclared) British support for the Confederacy – which for at least two-years extended into the realms of Post Office support! Of course, many of the best weapons the Confederate Army possessed were supplied by the UK. The Postmaster General of the Confederate Post Office Department (POD) – John Reagan (whilst traveling with President Jefferson Davis) – was arrested on the 8th May 1865, and imprisoned at Fort Warren in Boston Harbor. Reagan was pardoned and released from prison almost two years later. Jefferson Davis “refused” a Pardon (on the grounds that he had done nothing wrong) – and was subsequently released anyway.