Rare Vintage F & S Distributors Aluminum Lighting Grid Cable Cord Hanger Hook

I am guessing that's what this is

Made by F & S  DISTRS (Distributors)  MINNEAPOLIS MINN

Code: 279CH - Date Code, Model, ?

20" Long x 5" Wide (at the tines) x 1 1/2" Wide Middle

Any better ideas - let me know

Thanks for looking!