1960s handmade overcoat baby blue with pink lining

Mid-weight lined, button up baby blue trench coat. Made by my aunt Marge. Two deep front pockets. Fully lined in pink satin like material. Use the two sewn in straps to wear over your shoulders like a super hero. No material or size tags but would fit modern size 12-14 best. 21” ptp and 39” long. Lining has come loose in both underarms.