Table:
text: LB&SCR I2 class
Locomotive Summary
I2 class locomotive fleet summary
LB_SC_Number Built S_R_Number Withdrawal Notes
34 Cannot handle non-empty timestamp argument! 1908 2034 Cannot handle non-empty timestamp argument! 1940 I4
35 Cannot handle non-empty timestamp argument! 1909 2035 Cannot handle non-empty timestamp argument! 1937 I4

Question: What is the sr number for class LB&SCR I2 when the lb&sc number is 34?