Congrats Amy another rare bird (horse in this case) in your collection.
The Hannover's infantry adopted the spike helmet in 1849. This M.1849 is ispired by the prussian M.1843.
In my humble opinion some details are wrong:
Hannover's kingdom only fitted round head screws, not star screws.
Never...
When passion, good taste and competence come together, this is the result. A collection like few others, with rare and magnificently displayed objects.
Congratulations on what you show us.