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:
| Number | Builder | Type | Date | Works number |
| --- | --- | --- | --- | --- |
| 1.0 | Avonside Engine Company | 4-4-0 | September 1870 | 808 |
| 2.0 | Canadian Engine & Machinery Company | 4-4-0 | November 1870 | 83 |
| 3.0 | Canadian Engine & Machinery Company | 4-4-0 | December 1870 | 84 |
| 4.0 | Canadian Engine & Machinery Company | 4-4-0 | early 1871 | 85 |
| 5.0 | Canadian Engine & Machinery Company | 4-4-0 | March 1871 | 86 |
| 6.0 | Canadian Engine & Machinery Company | 4-4-0 | May 1871 | 87 |
| 7.0 | Canadian Engine & Machinery Company | 4-4-0 | May 1871 | 88 |
| 8.0 | Avonside Engine Company | 4-6-0 | December 1871 | 867 |
| 9.0 | Avonside Engine Company | 0-6-6-0 Fairlie | December 1871 | 864 & 865 |
| 10.0 | Avonside Engine Company | 4-6-0 | early 1873 | Uncertain but probably one of 931-934 |
| 11.0 | Avonside Engine Company | 4-6-0 | 1872 | Uncertain but probably one of 935-939 |
| 12.0 | Avonside Engine Company | 4-6-0 | early 1873? | Uncertain but probably one of 935-939 |
Question:
Which Works number has a Builder of avonside engine company, and a Type of 4-6-0, and a Number smaller than 12, and a Date of december 1871?
Answer:
867.0