Conan Doyle A. Study in Crimson Tones. Sign of the Four. /Konan Doyl A. Etyud v bagrovykh tonakh.Znak chetyrekh. Series: Family Library. Reading Room. M. Vita-Nova. 2010. 288 p. We have thousands of titles and often several copies of each title may be available. Please feel free to contact us for a detailed description of the copies available. SKUalb073cfae56f67d206