more information on the Tim Heathfield collection
Cheltenham
United Kingdom
I have just six acoustic aids, 2xbraided, tapered conversation tubes and four trumpets as illustrated

update now 8 !

Image © Tim Heathfield

Image © Tim Heathfield

© Tim Heathfield

© Tim Heathfield

marking is MEARS OL340A 5^56
© Tim Heathfield