(BAR-300A/B/C/D / BAR-71-01A/B) Famous Footballers - New Series
Barratt & Co.
I've had this card listed in my database for some time so I was surprised to see it appear on eBay recently as it's obviously a one-off - Wilf Mannion on the front and Len Shackleton on the back.
24. W. Mannion (Middlesbrough) - misaligned / 29. L. Shackleton (Sunderland) - inverted