you just saw

what I didn't write for I was tired, translation ecc. but I thought, in my mind., someone perhaps will see the hole....
now the history is: the holes are
six :
two in the vertical gear,
two in the horizontal gear , and
two with the big cam underbed
when I opened the machine there were
two screws in the vertical gears,
one in the horizontal one , and
one in the big cam. who stole them? a mistery
the arm was closed from many years.....
without Sherlock Holmes, where might I found two other screws?
i just tried to distribute my four screws in different ways. but they are few

I may try the disassembled screws of the shuttle-carrier, but after what type of screw I must buy? and where?
ciao thank you cristiana