BOHS has the following post-nominals:
Terms and conditions of use for post-nominals
Designations can only be used by members who are in current membership. Lapsed and resigned members and graduates are not eligible to use post-nominals. Members who have retired are still able to use their post nominals as long as they maintain their membership.
The use of post-nominals and chartered designations may be withdrawn if a member or graduate is found to be in breach of the Society’s Code of Ethics.
If you have any questions about post nominals, please direct them in the first instance to the Membership team – firstname.lastname@example.org