Varnish for Gelatine Negatives. NEW REFLECTOR FOR SUSPENDED LAMP. SAMMY'S LAMP REFLECTOR. The Bray of the Mexican Donkey. Toughened Glass. IMPROVEMENT IN BUTTONS. ERICSSON'S IMPROVED BUTTON MISCELLANEOUS INVENTIONS., scientific american, 1881-07-23
Varnish for Gelatine Negatives. NEW REFLECTOR FOR SUSPENDED LAMP. SAMMY'S LAMP REFLECTOR. The Bray of the Mexican Donkey. Toughened Glass. IMPROVEMENT IN BUTTONS. ERICSSON'S IMPROVED BUTTON MISCELLANEOUS INVENTIONS., scientific american, 1881-07-23
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