Looks to be a bigger girls size, perhaps a modern medium/large ( In my opinion) 
Shoulder to bottom measures ( including lace) 32"
Arm pit to arm put ( taken flat) 15" 

Condition: Overall good condition. This looks to be ivory color/off white. Does have a few yellow staining ( see photos) that i have not treated. Not sure on overall age of this piece but it was sold to me as a 1910-1920s. I dont see any visible holes. Sold as is