Pocket Watch from Royal Property

Gold plated case, 53 x 47 mm., the mechanism cover enriched by an applied monogram of Tsar Boris III in GOLD, the crown, set with a Ruby, resting on a fine, Art-Déco engraved ornamentation, mechanism made by IWC, ivory white dial with golden hands, signed “International Watch Co. / SCHAFFHAUSEN”; the inner platine struck with round maker’s mark “IWC PROBUS SCAFUSIA” and further marks and numbers to the inner case, the watch is still retaining the original, maker’s label, with matching serial number.
An extremely rare watch, from the property of Tsar Boris III, excellent condition. I RR!