1873 INVITES FROM THE LORD MAYOR OF LONDON. Envelope from London to Finchley with 1d pl.156 (SG43) lettered ML, one short perf tied London duplex AP 23 73, on front imprint "THE LORD MAYOR" and on reverse City of London Coat of Arms. Within two very fine invites in black on pink glazed paper inviting addressee to a service at St. Botolph's Church, Bishopsgate May 7th 1873. Fine and unusual. (Ref 102988).