First Virginia Banks Inc. has declared a quarterly dividend of 17 cents per share, payable Jan. 10 to stockholders of record Dec. 31. . . .First Maryland Bancorp, parent company of First National Bank of Maryland, has declared a quarterly dividend of 37 1/2 cents per share, payable Jan. 3 to stockholders of record Dec. 17 . . . .W. Bell & Co. Inc. has declared a 5 percent stock dividend on its outstanding common stock, payable Dec. 10 to stockholders of record Dec. 1. . . .Beneficial Corp. of Wilmington, Del., has declared a quarterly dividend of 50 cents per share, payable Dec. 31 to stockholders of record Dec. 1. . . .Federal Realty Investment Trust has declared a quarterly dividend of 27 cents per share, payable Jan. 15 to stockholders of record Dec. 10. . . .Student Loan Marketing Association (Sallie Mae) has declared a quarterly dividend of 63 cents per share, payable Dec. 15 to stockholders of record Nov. 19. . . .National Capital Bank of Washington has declared a regular quarterly dividend of 60 cents per share and an extra dividend of 70 cents per share, payable Jan. 3 to stockholders of record Dec. 15. . . .International Bank has declared a quarterly dividend of 10 cents per share on its common and Class A common shares, payable Dec. 27 to stockholders of record Dec. 6. . . .Security National Corp. has declared a quarterly dividend of 35 cents per share, payable Jan. 7 to stockholders of record Dec. 8.