Original Rubber Spark Plug Protector German It was actually designed to

It was actually designed to burn charcoal briquettes

The igniters that would have been in this box were brass and normally used to ignite smoke elements

This is an original Bakelite model 41 Blende or black out cover for bicycle headlights

but worth it

We have seen used versions of this tin pop up across Germany

Original Rubber Spark Plug Protector German It was actually designed toOriginal German Isolator zundei or spark egg. It is a rubber case to protect spare spark plugs and keep them ready for use. Price is for one holder; spark plug is NOT included! These are absolutely indispensable for original vehicles. They are a little dirty, but still in decent, usable shape. These are difficult to come by in good condition. They are advertised in the 1931 Stukenbrok Hauptkatalog.