Envelope, 1929, 5¢ blue, size 13, knife 78, watermark 33, bearing 1925, 5¢ blue tied by "San Juan P.R., Jul 22 1935" duplex and addressed to San Francisco Cal., preprinted Mendez & Co. San Juan return address, Very Fine and scarce used entire, This entire was issued for use in Puerto Rico, St. Thomas and Virgin Islands. UPSS No. AM4-33 $500. Scott No. UC1 var.  $750. $0 (Image)

Envelope, 1929, 5¢ blue, die 2, size 13, knife 78, watermark 33, bearing 1925, 5¢ blue tied by "San Juan P.R., Dec 9 1935" duplex and addressed to San Francisco Cal., preprinted Mendez & Co. San Juan return address in border blue; small opening flaw and light corner crease at lower left, Very Fine and scarce used entire, This entire was issued for use in Puerto Rico, St. Thomas and Virgin Islands. Scott No. UC2 var. UPSS $750. UPSS No. AM9-33. $0 (Image)