Vintage German bayonet , USA 1917 bayonet , ww2 shell

Here few items come up for sell : 

SOLD - German ww1 bayonet model 1871 bayonet sword type , no scabbard :  265 $ .   I had more photos . 

USA 1917 or M17 bayonet , good condition : 365 $ . I had more photos . 

SOLD - ww2 german K98 bayonet , in amazing condition. Dated 39 mean 1939 .   330 $ . I had more photos . 

Ww2 shell casing for 40 mm , 31 cm  dated 1944.  It look for antiaircraft .  95 $   I had more photos . 

Ww2 shell casing for 40 mm , 31 cm  dated 1943 It look for antiaircraft .  95 $ I had more photos .