In total, there were 35 numbered issues, 6 unnumbered special issues. These movements are sometimes marked but many remain unmarked and unnumbered. Unnumbered roads through Yellowstone connect the two sections. The first two books (but not the third) are introduced by unnumbered prefaces. Only 6000 unnumbered copies were released. The book "War Letters" was published in a unnumbered edition of 125 copies. Several other unnumbered designations were added later. Unnumbered roads within Yellowstone National Park connect the two branches. Eighteen black and white volumes, plus an unnumbered color special, were published through early 2008. Another series of unnumbered tropical depressions exited the coast of Africa in August. There are also several "unnumbered" symphonies from this time period. It then overlaps the TCH into Winnipeg as an unnumbered highway. Number the unnumbered adjacent squares, starting with 5. Later re-pressing led up to 23,000 pressed but unnumbered copies. D.C. Exits were unnumbered until July 2014.