and fuses too!!

I have no solutions, I am looking for help.

I have a 75 HE Shell, for example withe these marks

N 361 V
E-N
854-NYAB

Now, NYAB stands for New York Air Brake Co. who manufactured shells for us (and you I guess) for the last two wars. (Still in business, BTW). But what is the date? Anybody know how to read this?

What about a fuse that says:

PDF MKV
SMG

Anybody? Is there a glossery somewhere? Can we make one?

Thoughts?