TY - `BOOK` A2 - Randall, Anthony G. TI - Pocket chronometers, marine chronometers and other portable precision timekeepers PB - British Museum Publ. CY - London PY - 1990 LA - eng SE - 275, 176 S. SN - 0-7141-0551-1 SN - 978-0-7141-0551-2 CN - 92 B 857::6 AN - UBHD-3608823 ER -