NO. 21 Bird Floral Print Pajama Style Button Down Blouse SZ S? EUC

NO. 21 Bird/Floral Print Pajama Style Button Down Blouse. I don’t see a size anywhere, but I’m guessing this is around a size small - because I’m not sure please see measurements below. In excellent used condition and from a smoke-free home. Armpit to armpit 21.5” Bottom hem lying flat 21.75” Length 27.5” TD3