I got this as a forwarding today.
These are the 4 original swords of first 4 Caliphs safe and securely placed in national museum, Istanbul turkey.
From top to bottom:
The First Caliph,HAZRAT ABU BAKAR SIDDIQ (R.A) (632-634 A.C.)
The Second Caliph, HAZRAT OMAR BIN KHATTAB (R.A) (634-644 A.C.)
The Third Caliph, HAZRAT USMAN BIN AFFAAN (R.A)(644-656 A.C.)
The Fourth Caliph,HAZRAT ALI IBNE ABI TALIB (R.A) (656-661 A.C.)
Note: The sword of Hazrat Ali (RA) in this picture is not Zulfikar, this is a ceremonial sword of him when he was elected to be the Caliph of Islamic Empire.