Never heard of this brand but the name on back has a zip code so not too old !! Not a repro as such just made in the older style !! Bushmill Brewery is still in operation and Beeco Mfg Co. makes these for many breweries !! Its still in operation too !!
No it was not attached to anything,,it just hangs on the wall as is !! Looks like it had double face tape on the back to keep it stable and straight !!
Did you try ebay in the UK ??