Rare Antique Book, International Code of Signals American Edition 1923 vintage_tool each block measure approximately 1

each block measure approximately 1 5/8" square

The removable lid says Ming in the center

Rhode Island

a deep cool blue shading to lighter blue and soft gray

Rare Antique Book, International Code of Signals American Edition 1923 vintage_tool each block measure approximately 1A rare, hardcover book, "International Code of Signals" American Edition 1923 U. S. Hydrographic Office. Published and sold by the Hydrographic office under the authority of the Secretary of the Navy by Washington Government Printing Office. 558 pages. The book is in good vintage condition, with the navy blue linen covers bumped and frayed, there is a tear in the back spine. The pages have been corrected, updated, or deleted by hand, with glued on