LAMBERT
RARE BLUE CRAYON CANCEL ON 2c and 30C 
LAMBERT
10 CENTAVOS LINE BLOCK OF 8 - LARGEST USED MULTIPLE
LAMBERT
2 PESOS AND 4 PESOS BOTTOM PLATE MARGIN POSITIONS
LAMBERT
1925 MARCH: THE LAMBERT FORERUNNERS
LAMBERT
1925 JUNE 22: FIRST DAY OF USE ON SHIPPING LABEL TO NEW YORK
LAMBERT
1925 JULY 10: NON-LABEL USE ON PIECE 4c MCKINLEY MARGIN STRIP OF 4
LAMBERT
1925 AUGUST 1: 6c LINE BLOCK OF 10 LARGEST USED MULTIPLE ON OR OFF LABEL
LAMBERT
1925 AUGUST 21 AND SEPTEMBER 15 SHIPPING LABELS
LAMBERT
1925 SEPTEMBER 2 RARE DISPATCH DATE ON 2c BLOCK OF 8
LAMBERT
1925: 10 PESOS LEFT MARGIN SINGLE ON SHIPPING LABEL
LAMBERT
1927 JULY 23: 20c SPECIAL DELIVERY ON TARLAC TO MANILA COVER
LAMBERT
1929 JUNE 20: NON-LAMBERT USE OF 2c RIZAL BLOCK OF 4
LAMBERT
1928 - 1929: 4c TO 20c USED PRIVATELY TO DAVAO AND NEW YORK
BRIAS ROXAS
OUT OF THE BLUE 1 PESO BRIROX SECURITY STAMP
CBI
1918 SEPTEMBER 11: 10c CBI PERFIN TO FRANCE - CENSORED
CBI
1916 & 1918 TO PHILADELPHIA 2c and 4c WITH LARGE TYPE PERFINS
CBI
1931 MAY 21: LARGE "CBI" PERFIN ON 4c ON 1931 PAQUEBOT COVER TO WASHINGTON
CAMERA SUPPLY
1928: "C S / MANILA / P.I" SECURITY STAMP ON MANILA TO TABACO, ALBAY COVER
PECO
1927 AUGUST: 2c x 2 RIZAL PECO PERFINS TO NEW YORK 
PNB
1918 NOVEMBER 4: MANILA TO SPAIN WITH TYPE I PURPLE H/S ON 10c & 16c 
PNB
1918 & 1920 AUGUST 16: MANILA TO CHICAGO & NY  WITH TYPE II GREEN & PURPLE H/S