Seventy-threes

Carlsen concluded the domestic parley with the ham sign-off, "Seventy-threes," and went to the bridge to look at the ocean.

Seventy-threes and hope to catch you later.

Seventy-Threes to you, Neil. Look for you later on the flip.

Seventy-threes (regards) to the Cycle Man and spread 'em around (pass the word) on that Super Slab (Interstate).

Seventy-threes to you, Deke. Still totin' the Lord?”