Hello,
I know this is a bit late, but I do have some info on the Glaslyn Iron and Brass Foundry, In fact I own the old Main engine that worked there from the early 1920's up and until the foundry closed.
I would also like any info or photo's of this foundry for information in the museum that will house the almost unique engine that once sounded out ( for miles) across porthmadoc.
Please get in touch.
Best regards
Steve