Question for Kantor Notaris Ruth Ivo Maria Tobing SH

Dear Sirs, I'am looking for an official document (akte) produced by notaris Tobing in Medan on 25th of June, 1953, on behave of the late mrs Anna Hedwig Holtz, born 1931 in Kotaradja. Please, could you tell me if I'm contacting the right notary office in Medan now and, if so, could you mail me a copy of this document, or at least tell me what kind of document this may concern.Thanks for answering, mr R.A. Blankers, son of her late second husband.