Vintage 1940's Lace Trimmed Satin Wedding GOWN Including Original HOOP SLIP

Description

This beautiful pre-owned satin wedding gown with lace trim has been stored in original box in an attic for a very long time. The dress is wrinkled and has soiling along bottom hemlines of both gown and slip.
Hope the following approximate measurements are helpful. I laid the gown flat and measured accordingly, utilizing a yardstick:
shoulder to shoulder 13.5"
across front underarms: 17"
front neck edge down to hem:  54"
bottom of gown hem to end of train: 47"
across front at waist: 15"
sleeve inseam: 16"
hoop slip: 40" long - As stated on attached tag:
Size 10
Hoops! My dear
by I. & M. CO.
I did not see any tags on the gown itself.
Gown has lace trim, long sleeves that come to a point on hand, buttons on back and sleeve openings, long train with loops attached for pinning up from floor.
There are two matching pieces (pictured), not sure of purpose.
Included is the original hooped slip worn with gown (see photo showing attached tag).
Items will be packaged / sent in original storage box (see photo).