Show I Unclaimed Package in 5 S F F Packs Potent Explosive SAN FRANCISCO Oct 2 20 INS INS Enough Enough nitroglycerine to wreck wIeck a a. city block was handled gingerly Monday by American Express Ex Ex- press ress Agency after fter it was was' vas discovered in an innocent looking coking package that ha had been unclaimed unclaimed un- un claimed for more than a year The pac package age which contained almost a pint of ot nitro in several bottles bottle was sent to the express agency's home office in S San Francisco Francisco Fran Frau cisco Isco from Denver where it had remained unclaimed k |