In 1921 a remarkable little book was published by the Siamese ministry of defence. Titled The Chronicle of the 1st Guards Infantry Regiment (ตำนานกรมทหารราบที่ ๑ มหาดเล็กรักษาพระองค์), it details the history, organisation, and uniforms of the formation since its inception early in the Fifth Reign up to the time the book was published. Best of all, perhaps, is the inclusion of 63 captioned photographic plates arranged in chronological order. Here are some of them.
Guards officer and enlisted men, 1868.
Guardsman in full dress uniform, 1872.
Guards sergeant, corporal and enlisted man, 1872.
Cavalry Officer, 1874.
Officer in full dress uniform, 1874.
Guards officer and enlisted men in field uniforms, 1894.
Guards officer and sergeant in full dress uniform, 1898-1908.
Guards subaltern and corporal in field uniform, 1908-1912.
Guards infantryman in field uniform, 1908-1912.
Infantry field uniforms, 1912-1919.
Infantry private and non-commissioned officer, 1912-1919.
Infantry field uniforms, 1919-1921.
Infantry uniforms, 1919-1921.
Interestingly enough all of the plates are reproduced as line drawings in the “uniforms” section of the Royal Institute’s Encyclopaedia.