Graham LS5/9 differences about screws?..

Hello!

My name is Gianluca and I from Italy. I really love all about is from HiFi equipment and his history.

Actually I am going to replace my Spendor SP2/2 for a pair of Graham LS5/9.

I have found here in Italy a pair of Graham from a very well Known hifi shop. 
These Graham are “open box” and the price is very good.

But I have  noticed that 2 screws are missing comparing with the pictures present online. 

The 2 screws I am referring to are those between the tweeter and the small vertical panel where the sensibility can be changed with different soldering.

Do you have any idea about this? 
I really appreciate your contribution 

All the best.

Ciao!

Gianluca