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Scott Number: R48c Collection Reference No. for Communications: 5489

Denomination/Type: 25c Power of Attorney, red, perforated

2025 Scott Catalog Value (for a single stamp): $ 1.00

Estimated Retail Value: $ 250.00 What is this?

Cancel Method: Manuscript

Cancel Date: May 30, 1864

Cancel or Company Type: Law Firm, or Federal, State or Local Government

Company: George S. Porter, Port Warden

City: San Francisco

State: California

A very scarce document type, an 1864 port warden's certificate from San Francisco. Secondary certification transaction on the reverse with an R27b part perf.

If you have any information or comments about this cancel or stamp, please email me.