Philately

Special Cancellation Die Hubs

Postmasters and plant managers who have any of the special cancellation die hubs listed below may use them for the periods designated. At the end of the period, these die hubs must be withdrawn and stored. Postmasters and plant managers who do not have these special die hubs may not request them from the sponsors.

— Mailing Standards, Pricing and Classification, 10-27-05