Mixed Franking Covers – How common stamps can make a rarity!
Ray Simpson and Karl Louis explain Mixed Frankings found on covers, the unexpected rarity of certain stamp combinations and how to use the Valuation Factors. Talk originally broadcast as part of Virtual Stampex. You can still enjoy the online event, with the Virtual Stampex website open until the end of 2020, just visit: stampex.vfairs.com (with thanks to Isobel from the PTS).
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