Plaque of a shot down HS 126 / France. 20-06-1940

[canonne]

Bonjour,

As I am searching to identify and to study German bomber units which bombed area of he city of Châteauroux (Central France) on 19 June 1940, I found this good piece of archive.

On 20 June 1940, French fighters shot down a Henshel HS 126 from 4 (H) / 22 killing the aircrew. The plane went down near Châteauroux .
My questions are for this Werk plaque an eyewitness very kindly gave me :

1- What was the Stamm ? 4 N + AM (??)
2- What was the Wr.nr 3365 ( ??)
3- Where did this plaque fixe ? Around one of the landing gear ?
4- Were was built this a/c ?

5- And, sorry “cerise sur le gateau “ (please, what is the English sentence for that situation ?) a photo showing that plane …
Thank you so much.

Philippe
ps : I hope to obtain a better photo for the identification of green/gray color.