Good memory.
“In port: This ship is under quarantine. Underway: You should stop your vessel immediately. With 4 numerals, latitude; first 2 numerals signify degrees, second two numerals indicate minutes.”
http://combat.ws/S4/SAILOR/APNDX7.HTM
Thanks, but I don't deserve that.
Just saw it this afternoon (may even have been a post on this thread), really only repeated the outline of that thread and thus saved myself from either silence or WAG.
Only exposure I had to signals while I was "in the Navy" was the ones hanging all over during Boot Camp and, as I have been known to observe, my entire Naval Career didn't include as much Sea Duty as some others spent falling overboard.