1980 Queen Mother’s Birthday…. Postmarked at the ROYAL COURT Post Office with BUCKINGHAM PALACE CDS First Day of Issue. Scarce and exclusive postmark. Please look at my other auctions. Emartenetf emartenetfcds emartenettroy emartenetf80 emartenetnfoff. I do not charge my buyers extra! The item “1980 Queen Mother ROYAL COURT Post Office with BUCKINGHAM PALACE CDS FDC” is in sale since Thursday, April 5, 2012. This item is in the category “Stamps\Great Britain\First Day Covers\1971-Now\Commemoratives”. The seller is “emartenet” and is located in Wild Wonderful West WALES. This item can be shipped worldwide.