Wembley Ware Budgies

A delightful hand painted piece this one.I saw one the same recently on the Australian Pottery site, and that had the same stamp underneath of course, but my one has what looks like maybe an "M" and maybe an "I" or "L" on the underneath as well. The other one I saw, only had the stamp. It could be the decorator`s initials, but not having seen many of the underneaths, I just do not know. Any other of these pieces out there, that maybe have initials underneath please?