I recently purchased this helmet from one of our members. I bought it for the metal fittings essentially but upon further thought, it may also provide a "teaching moment" for new collectors. I spent 37 years as a HS History teacher so bear with me....it in the blood! 
This helmet has taken a huge amount of environmental abuse:
Heavy oxidization on the brass fittings! Once these were a bright brass colour but now.....chocolate brown! Bent tilted spike, blistered finish on the front visors, cracked finish all over the helmet. For new collectors, we are going to explain what has happened to this poor abused piece of History. The blistering and all the finish crazing has been caused by excessive heat. More photos:
The stitching on both visors... rotted out.
Spike top pushed down into the shell...something heavy put on it (fixable).
to be continued...
This helmet has taken a huge amount of environmental abuse:Heavy oxidization on the brass fittings! Once these were a bright brass colour but now.....chocolate brown! Bent tilted spike, blistered finish on the front visors, cracked finish all over the helmet. For new collectors, we are going to explain what has happened to this poor abused piece of History. The blistering and all the finish crazing has been caused by excessive heat. More photos:
The stitching on both visors... rotted out.
Spike top pushed down into the shell...something heavy put on it (fixable).
to be continued...