Very much appreciated Jim, I will look them up on Brocross ( https://www.brocross.com/Bricks/Penmorfa/index.htmCitroJim wrote: 14 Oct 2023, 05:43 Neil, we spotted these in the Cambridge Museum of Technology and thought of you
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) and have a bit of industrial history delve, which I always enjoy

The humble brick, preserved and secured in a glass display cabinet, they wouldn't have thought that when they came out of the kiln!
Neil