Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Election | 1st Member | 1st Party | 2nd Member | 2nd Party |
| --- | --- | --- | --- | --- |
| 1832 | Lord John Lennox | Whig | The Earl of Surrey | Whig |
| 1841 | The Earl of March | Conservative | Charles Wyndham | Conservative |
| 1847 | The Earl of March | Conservative | Richard Prime | Conservative |
| 1854 by-election | The Earl of March | Conservative | Henry Wyndham | Conservative |
| 1860 by-election | Walter Barttelot | Conservative | Henry Wyndham | Conservative |
| 1869 by-election | Walter Barttelot | Conservative | The Earl of March | Conservative |
| 1885 | constituency abolished | constituency abolished | constituency abolished | constituency abolished |
Question:
what election year has 2nd party conservative with 2nd member henry wyndham and 1st member walter barttelot?
Answer:
1860 by-election