1961 - Post Office Savings Bank Centenary First Day Cover - London WC Postmark, Addressed to Stanley Gibbons

1961 - Post Office Savings Bank Centenary First Day Cover - London WC Postmark, Addressed to Stanley Gibbons, 391, Strand, WC2
"Post Office Savings Bank Centenary 1861 - 1961"
Three stamps
Postmark Dated 26th August 1961