Please read the following table in HTML format from a webpage and then answer the question in detail according to the table. Each table cell is defined by a <td> and a </td> tag. Each table row starts with a <tr> and ends with a </tr> tag. 'rowspan=m' and 'colspan=n' represents a cell spaning over 'm' rows and 'n' columns.

Webpage title:
British Rail Class 15
Table title:
Conversion
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Original Number </th><th colspan=1 rowspan=1 > Departmental number </th><th colspan=1 rowspan=1 > Location </th><th colspan=1 rowspan=1 > Withdrawn </th><th colspan=1 rowspan=1 > Disposal </th></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > D8203 </td><td colspan=1 rowspan=1 > DB968003 </td><td colspan=1 rowspan=1 > Finsbury Park (FP) </td><td colspan=1 rowspan=1 > 1981 </td><td colspan=1 rowspan=1 > cut up 1981 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > D8233 </td><td colspan=1 rowspan=1 > DB968001 </td><td colspan=1 rowspan=1 > Finsbury Park (FP) </td><td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > preserved </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > D8237 </td><td colspan=1 rowspan=1 > DB968002 </td><td colspan=1 rowspan=1 > Finsbury Park (FP) </td><td colspan=1 rowspan=1 > 1982 </td><td colspan=1 rowspan=1 > cut up 1985 </td></tr>
<tr> <td class="highlighted"  colspan=1 rowspan=1 > D8243 </td><td colspan=1 rowspan=1 > DB968000 </td><td colspan=1 rowspan=1 > Finsbury Park (FP) </td><td colspan=1 rowspan=1 > 1989 </td><td colspan=1 rowspan=1 > cut up 1991 </td></tr>
</table>
Question:
What were the numeration of the British Rail Class 15 locomotives?
Answer:
British Rail Class 15 were numbered till D8243.