Field Service Pocket Book Part 1. Pamphlet no. 3. Abbreviations. WO 7161 Field Service Pocket Book Part I. Pamphlet 3. Abbreviations Field service pocket book. Part I : Field Engineering Convoluut bestaande uit : Field Service Pocket Book, Part 1 - Pamphlet No.: 13, 12, 10, 9, 7, 6A, 6, 5, 4, 3A, 3 en … Vocabulary of Clothing and Necessaries.