5 Pesos Bank of the Philippines Islands, Red back

The Bank of the Philippine Islands was a private commercial bank operating under American colonial administration, and this series was printed in Washington under a formal arrangement that reflected the tight fiscal oversight Washington maintained over Philippine monetary affairs in the decade following the 1902 Philippine Bill. The red back distinguishes this from the green-back issues of the same denomination — a deliberate chromatic separation used to manage teller identification across different issue runs, not a reprint or replacement series.

Two signature combinations are documented for P#7. The Garcia/Sendres pairing is the scarcer of the two and commands measurable premium in the specialist market.