From the announcement:
For every plastic boxed set from our Victrix Warriors of Antiquity range (Greeks and Romans), you will now receive a free LBMS shield transfer sheet of your choice. Order two boxes, and get two shield transfer sheets, etc.... and this offer also applies to our multi-box deals. So the more boxes you buy, the more you save on transfers.
When ordering online, please specify in the comments box which shield transfer or sheets you require.
You can also order via email or over the telephone, and Julian will be happy to take your order.
This offer only lasts until Wednesday, 15th October 2014.