254 A.2d 172 THE RIGGS NATIONAL BANK, ET AL. v. WELSH, ET AL. [No. 273, September Term, 1968.]Court of Appeals of Maryland. Decided June 11, 1969. Motion for rehearing filed June 19, 1969; denied July 8, 1969. (Per Curiam filed, see p. 217, infra). ESTOPPEL — Claimants Of Mechanics’ Liens, At Whose Instance Funds Advanced […]