"The Junk Blue Book of 1962 is a detailed catalog of the indigenous boats of what was then South Vietnam, during a period when most such vessels were still powered by sail. It was a manual put together by the US Dept. of Defense early in the involvement in the war in Vietnam. It was used as a guide to identify coastwise marine traffic involved in smuggling supplies and personnel south into the Republic of Vietnam from then North Vietnam. Although its production was driven by perceived military necessity it is a unique chronicle of the indigenous fishing and cargo craft of the mid and southern Vietnamese coasts."