Lee, Go to www.bbclassics.co.uk. The Astrali mirror at GBP49 the pair were Standard fit in 1974 on many Triumphs and other BL makes. I recall the other mirror types that were a stock fitment to US cars of the period were unique to the US as the Astrali type was the only one that was type approved for Europe and all other non US markets. Jonmac