Fig. 4.8: Forged Overprint
Purple. Triangle at center
Small and slanted "1926". Long dash
between "MADRID" and "MANILA".
Fig. 4.9: Forged Handstamp
Reddish purple. Blob at center.
Small "1926" numerals. Dash touches "D"
and wrong typeface.
Fig. 4.10: Forged Handstamp
Black. Two circles at center.
Malformed "9" on year. Dash touches "D".
Wrong typeface.
Fig. 4.11: Forged Overprint
Dark purple. Small star at center. 
Small "2" and "6" on year.
Dash touches "D" of "MADRID".
Fig. 4.12: Forged Overprint
Reddish purple. Small star at center.
Small "6" on year.
Dash touches lower leg" of "M".