Q56 January 2009   member 595 Heliopolis earlist date. I a stationary with Heliopolis cd type HEL. 1 with a date of 10 VIII 09, or August 10, 1909. The date listed in Mr. Vahe Varjabedian's QC 197 article shows an earliest date of 15.9.1909, or September 15, 1909. I am curious to know if anybody else out there has an earlier date? By the way that same article does not list a latest date for this postmark. I have 3 other postcards with similar CD's, the latest being December 2, 1909. Any feedback is appreciated.