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:
1947–48 Port Vale F.C. season
Table title:
Transfers in
Table:
<table id='hittask' contenteditable='False'>
<tr> <th colspan=1 rowspan=1 > Date from </th><th colspan=1 rowspan=1 > Position </th><th colspan=1 rowspan=1 > Nationality </th><th colspan=1 rowspan=1 > Name </th><th colspan=1 rowspan=1 > From </th><th colspan=1 rowspan=1 > Fee </th><th colspan=1 rowspan=1 > Ref. </th></tr>
<tr> <td colspan=1 rowspan=1 > June 1947 </td><td colspan=1 rowspan=1 > FW </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Len Barber </td><td colspan=1 rowspan=1 > Bury </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > June 1947 </td><td colspan=1 rowspan=1 > MF </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > John Currie </td><td colspan=1 rowspan=1 > Bournemouth and Boscombe Athletic </td><td colspan=1 rowspan=1 > Free transfer </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > October 1947 </td><td colspan=1 rowspan=1 > DF </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Harry Hubbick </td><td colspan=1 rowspan=1 > Bolton Wanderers </td><td colspan=1 rowspan=1 > £1,000 </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > January 1948 </td><td colspan=1 rowspan=1 > MF </td><td colspan=1 rowspan=1 > England </td><td colspan=1 rowspan=1 > Walter Keeley </td><td colspan=1 rowspan=1 > Bury </td><td colspan=1 rowspan=1 > Exchange </td><td colspan=1 rowspan=1 >  </td></tr>
<tr> <td colspan=1 rowspan=1 > April 1948 </td><td colspan=1 rowspan=1 > MF </td><td colspan=1 rowspan=1 > England </td><td class="highlighted"  colspan=1 rowspan=1 > Joe Dale </td><td class="highlighted"  colspan=1 rowspan=1 > Manchester United </td><td class="highlighted"  colspan=1 rowspan=1 > £1,000 </td><td colspan=1 rowspan=1 >  </td></tr>
</table>
Question:
How was Joe Dale signed?
Answer:
In the 1947–48 Port Vale F.C. season, Joe Dale was signed from Manchester United for £1,000.