Lost: baby gown, inside white/clear bag w/ orange zipper

I commute by bike from Southie to Inman. My bike panniers are open at the top. Last Monday 7/15 I brought a project bag with me and I’ve come to the conclusion that the bag fell off my bike. Inside was a very special embroidery project: an heirloom baptism gown. It could be anywhere along that route, including Financial District, Government Center, MGH, Kendall, or Inman. If you have found this, please call at show contact info Thanks