Ben prof 1/42 vol.vii.DNA IB (BOX NO 7)
BEN PROF 1/6 DNA IB (BX NO. 1)
Ben Prof 1 45/VOL XVII DNA IB (BX NO. 14)
Ben Prof 1 45/VOL XIX DNA IB (BX NO. 14)
BEN PROF 1/44 VOL. X DNA IB (BX NO. 11)
Ben Prof 1 46/VOL II DNA IB (BX NO. 15)
Ben Prof 1 46/VOL III DNA IB (BX NO. 15)
Ben Prof 1 48/VOL II DNA IB (BX NO. 15)
BEN PROF 1/45 VOL.III DNA IB (BX NO. 12)
BEN PROF 1/ 52 VOL. II DNA IB (BX NO. 21)