i have never used any braille sign manufacturers so i cant recommend one as such. but you will find options listed on the UKSB Signtoolbar and also on Signapp should you have an iphone, ipad or iPod touch device. you can download direct from iTunes.
Hard to tell exactly, but this might just be thin Phenolic / Novacryl applied to the face. I’d opt for "Raster Braille" (do a Google search) though if you don’t want to do a full photopolymer. I think the small applied bands on the sign face don’t look as nice, although they are cheaper to make. Hope this helps some.
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