Lot 50257 – 2003 Extreme Endeavours (British Explorers) complete set of 6 trials with head and value in silver instead of gold

2003 Extreme Endeavours (British Explorers) complete set of 6 trials with head and value in silver instead of gold, 2nd with altered design and 1st with altered inscription, mint n.h., very fine and fresh, offered with normal set for comparison, stated to be just one of four recorded intact sets. Note: SG states as a footnote: « Gummed perforated trials with alternative face value and/or designs are known. »