I picked up this one for the cancellation. The stamp is Scott 3, or ACSC 5. Nothing stands out as a variety, but the cancellation appears to read, "SYDNEY / AP 22 / SPECl 6 / 13 / 45". I interpret this as a cancellation from Sydney on April 22, 1913. But, what does the SPECl 6 or 45 mean? Does it mean the standard canceller was unavailable at the time? Thanks in advance.
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