SER R class
Withdrawal

Year
R class in service at start of year
R1 class in service at start of year
Quantity withdrawn
Locomotive numbers
Notes
1931
11
13
1
1342
-
1932
10
13
1
1077
-
1934
9
13
3
1126, 1152, 1338
-
1935
6
13
1
1153
-
1937
5
13
1
1125
-
1939
4
13
1
1155
-
1941
3
13
1
1336
-
1942
2
13
1
1070
-
1943
1
13
1
1124
-
1949
0
13
1
1127
-
1955
—
12
2
31154, 31335
-
1958
—
10
2
31069, 31147
-
1959
—
8
6
31010, 31107, 31128, 31174, 31339, 31340
-
1960
—
2
2
31047, 31337
-

Question: How many locomotives in the R1 class were withdrawn in the years 1949, 1955, 1959, and 1960?
Answer: Of the 13 R1 class, one was withdrawn in 1949, two in 1955; after 1959, only nos. 31047 and 31337 were left and these were withdrawn in 1960.