Gorgeous 1910s Grey-Blue Silk Blouse with Blue Accents and Wrap Ties

This antique 1910s blouse is made the most lightweight, softly lustrous silk. An unusually casual design, this piece features a hidden internal waistband and snap closures with exterior tunic which wraps around the bodice to tie asymmetrically at the left waist*. Franky, I haven't seen anything quite like it before. The silk is a blue-grey hue, much more like the modeled images than the mannequin shot. It is edged with navy silk and has royal blue embroidery. 

*If there is another method of using the silk ties, I can't work it out. 

✂-----Measurements
.
Shoulder: 14"
Bust: 37"
Waist: 30" (can be tied more snugly 
Length: 17"

Label: None Present
Material: Silk
Condition: Very Good minus

This blouse is has not been cleaned, due to its age. However, it feels very fresh. There are two snaps I can't determine the purpose of. There is a single tiny snag in the silk on the back - so small it's almost absurd to mention. I find no other issues to note.