From the June/August 1983 Aberystwyth pictures.
25234 and 25229 (rear) arrive at Machynlleth with the 1010 Euston - Aberystwyth passing the stock of the 14.00 Aberystwyth - Shrewsbury. It's a pretty good guess that the heads hanging out of the window of the incomming train are bashers hoping to make the other one!