tuba mouth piece (Moreton CH46)

I have a bass tuba and I have lost the mouth price to thiefs who proberbly thought it was worth more as scrap, an odd item to request I know but someone out there knows someone who knows someone who knows,
The Pictures show a similar type trombone mouth piece which is the same design but smaller. they are normally made of plated brass, I have seen plastic and wooden types also, any will suffice, if you think you have something similar please get In touch,
 fingers crossed.
Thanks.