Table:
text: SECR L class
Locomotive Summary
L class locomotive fleet summary
SECR_No_ SR_No_ BR_No_ Builder Date_Delivered Date_Withdrawn
765 1765 31765 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1961
766 1766 31766 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1961
767 1767 31767 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1958
768 1768 31768 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1961
769 1769 31769 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1956
770 1770 31770 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1959

text: SECR L class
Locomotive Summary
L class locomotive fleet summary
SECR_No_ SR_No_ BR_No_ Builder Date_Delivered Date_Withdrawn
760 1760 31760 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1961
761 1761 31761 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1956
762 1762 31762 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1960
763 1763 31763 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1960
764 1764 31764 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1961

text: SECR L class
Locomotive Summary
L class locomotive fleet summary
SECR_No_ SR_No_ BR_No_ Builder Date_Delivered Date_Withdrawn
771 1771 31771 Beyer Peacock Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1961
772 1772 31772 Borsig Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1959
773 1773 31773 Borsig Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1959
774 1774 31774 Borsig Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1958
775 1775 31775 Borsig Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1959
776 1776 31776 Borsig Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1961
777 1777 31777 Borsig Cannot handle non-empty timestamp argument! 1914 Cannot handle non-empty timestamp argument! 1959

Question: What is Beyer Peacock's SR number with a SECR number of 769 in the SECR L class?