portraits of greatness life and times of Washington / general editor, Enzo Orlandi ; text by Mario Rivoire ; translator [from the Italian] C. J. Richards Test sets I-56-C, -D, -H, -J - USA Voorschrift, Technical Manual, 11-303 Frequency meter sets SCR-211-A, B, C, D, E, F, J, K, L, M, N, O, P, Q, R, T, AA, AC, AE, AF, AG, AH, … Keyers TG-10-A, TG-10-B, TG-10-C, TG-10-D, TG-10-F, TG-10-G, TG-10-H and TG-10-J - USA Voorschrift, Technical Manual, 11-447
