Stampex 2014 Royal Mail Post & Go Faststamps - 19 February 2014
At Spring Stampex in February 2014 new Post and Go machines were in use.
New Royal Mail 'Series B' machines were used. These are taller and have improved capabilities. The datastring is
B indicating series B, and A001 being the machine number. Machines A002, A003, and A004 will be the self-service machines at Stampex. The 'back-office' machines were B001 & B002. At various times stamps without date and dated MA13 were available from various machines.
This is a single 1st class MA13 stamp from machine number B002.