Bidspirit auction | Royal mail Marine Timekeepers first
Royal mail Marine Timekeepers first day cover with 4 John Harrison 1693-1776 stamps displaying different layers of the H4 clock, stamped 16th February 1993, FDC.
Royal mail Marine Timekeepers first day cover with 4 John Harrison 1693-1776 stamps displaying different layers of the H4 clock, stamped 16th February 1993, FDC.