| The picture shows both sides of this Old Patent Attorney Advertising Letter Opener. It appears to be made of copper with wear to the original luster finish. It has recessed lettering on both sides and some border design work on one side. It is marked on the two sides as follows: CLARENCE A. O'BRIEN
REGISTERED
PATENT ATTORNEY
OPPOSITE
U.S. PATENT OFFICE
WASHINGTON, D.C. ~ BRIEFLY ~
FIRST STEP IN PATENT MATTER - SEND ME A SKETCH OR MODEL AND $15 TO COVER SEARCH AND REPORT ON PATENTABILITY. FIRST STEP IN TRADE MARK MATTER - SEND ME A SAMPLE OR SKETCH OF MARK AND $15 FOR SEARCH AND REPORT ON REGISTERABILITY. MY BOOKLET ON PATENT AND TRADE MARK PROCEDURE SENT FREE ON REQUEST. The advertising letter opener measures 8" long and is in very good condition. | 
