Harry C Lee was a sporting goods store in New York with it's own line of tennis rackets.
Until 1930 all rackets had a slot in the shaft near the handle, like the Snauwaert Caravelle used to have.
The Traveler is not mentioned in any catalog so you maybe on to something. If it's not slotted, it's from after 1930.
The latest model known is from 1955.
2x MAX 200G PRO, Nat.Gut/Ferry Force Super Touch at 58 lbs.