Would love to learn about the origin of this Brooch/Pin. Silver and polished Turquoise chips. Mark reads "STERLING TAXO" (sic), in a circle... and then beneath it -- clearly: "TACHI 970" . It is an OLD pin; Vintage 1930s/1950. Thank you. I am <<megustalaplata>>. Thank you. Monday, 8 August 2005. ADD...