Approx. 15 years ago, I ran across:
http://www.shep.co.uk/shep.htm
when a client needed some additional compressor modules for the master/outboard section of his "new" Neve 8068 desk.
Beyond that, I haven''t run across any Shep modules since.
However, I see their mailing address is still the same (Long Barn, North End....)...grin. THAT certainly stayed with me.
Bri