In copyright
It is possible this item is protected by copyright and/or related rights. You may be able to use this digital item under a copyright exception, otherwise you need to obtain permission from the rights-holder(s). These may be identified elsewhere in the catalogue record. Read more about copyright.
Read further guidance on copyright exceptions in the UK.
Credit
Sold in aid of the lord mayor's Red Cross and St. John fund, : stamp centenary exhibition, Lancaster House, 6th - 11th May 1940. In copyright. Source: Wellcome Collection.