Set of 34 volumes. It is unknown if this is a complete set, but it is the largest set available for sale on the internet. Originally published by Street & Smith, these books were republished by David McKay in the early 1900's. These adventure stories take place during the American Revolution and are designed for young readers. The books vary a little in condition, but generally speaking, spines are good; corners are bumped; some books have writing on the end pages; six books have dustjackets which have chips & tears, mostly along the spine. Please don't hesitate to contact customer service for more details about individual volumes.