MGR,
One San Juan airport expert said "It would be the "US Mail' "Air Express" and "AM-xxx" which is Air Mail Route with the Route Number for Caribair.".
The other San Juan airport expert said "The bottom line is probably the Air Mail Route number, 'AM XX' In Caribair's case I would assume that it was the Air Mail route between San Juan and St. Thomas/St. Croix, since those were the 'domestic' routes that they flew."
I am waiting for other San Juan airport experts to answer my question.
Regards,
Aharon
				
			One San Juan airport expert said "It would be the "US Mail' "Air Express" and "AM-xxx" which is Air Mail Route with the Route Number for Caribair.".
The other San Juan airport expert said "The bottom line is probably the Air Mail Route number, 'AM XX' In Caribair's case I would assume that it was the Air Mail route between San Juan and St. Thomas/St. Croix, since those were the 'domestic' routes that they flew."
I am waiting for other San Juan airport experts to answer my question.
Regards,
Aharon
 
				 
 
		 When in doubt, ask Google. When Google fails, ask SOH
 When in doubt, ask Google. When Google fails, ask SOH 

 
	 
 
		 
 
		 
	 
	 
	 
	 
	 
	 
	 
	
 
 
		 
	 
	 
 
		 
 
		 Duckie .. Ole 'Road Runner' BEEP BEEP .. on a DC-3
 Duckie .. Ole 'Road Runner' BEEP BEEP .. on a DC-3  should'nt it be 'CHUG CHUG'
 should'nt it be 'CHUG CHUG'  
 
		
 
	 
 
		