500 shares in Westfield Minerals and seeking update and valuation

I currently possess 500 shares purchased in April 1989 through CL-Laing and Cruickshank Investment Services in Belfast – they are original share certs issued November 22 1967. Each cert is issued in 50 share certificate of non-assessable Common Shares, references as follows – C8680, C7847, C11487, C9578,C9487, C9483, C8719, C8718, C8717, C8683.

My thanks Sean Sheehan