A TWO-DAY MARINE HYDROGRAPHIC SURVEY CHRONOMETER, BY THOMAS MERCER, ST ALBANS, CIRCA 1950
the 4in silvered dial signed as per title with 24hr dial, plugged winder aperture, open subsidiary seconds dial, up/down dial numbered '11054', blued steel hands, contained in drum case with stop/start lever and secondary contacts to side with counterstamped plastic and aluminium lid, contained in sponge, lidded wooden box of issue with numbered key in leather pouch, and MoD label to front, in canvas sided metal bound box with leather securing straps -- 6 x 11 x 8¾in. (15 x 28 x 22cm.)

Rated to sidereal time these were used in conjunction with a tape chronograph for determining precise time of observations in survey work. The opening in the seconds dial reveals the electrical (seconds) contacts.

Condition Report
movement uninspected but in good running order.

We are pleased to provide you with a general report of the condition of this property. Since we are not professional conservators or restorers, we urge you to consult with a restorer or conservator of your choice who will be better able to provide a detailed, professional report. Prospective buyers should inspect each lot to satisfy themselves as to condition and must understand that any statement made by Charles Miller Ltd is merely a subjective, qualified opinion. Prospective buyers should also refer to any Important Notices regarding this sale, which are printed in the Sale Catalogue. NOTWITHSTANDING THIS REPORT OR ANY DISCUSSIONS CONCERNING A LOT, ALL LOTS ARE OFFERED AND SOLD “AS IS” IN ACCORDANCE WITH THE CONDITIONS OF BUSINESS PRINTED IN THE SALE CATALOGUE.