Simplicity 3506 vintage baby layout pattern Christening dress kimono circa 1950

This vintage pattern is Simplicity 3506. This probably dates to the 1950s but I could not find a copyright date. This is for a baby infant set: a nightgown, wrapper, ribbon, Christening dress, slip, cap, and bib. This pattern has precut pattern pieces. All the pieces are present and in good condition but the envelop on this has the front and back dis-joined and there are multiple tears. The dress on this is tucked on the shoulders and closed in back.