I have Leslie Hunt’s “Veteran and Vintage Aircraft”, fourth revised edition, 1974 in front of me as I write.
There are no pictures of Blenheims in the “Near East, Middle East and Africa” section (pages 154 – 160). The books index lists only two Blenheims extant at that time, a Blenheim IV (unserialled) at the Belgian Air Force museum and Blenheim IV BL-200 listed at Luonetjarv Air Base in Finland.
Also listed are 5 Bolingbroke, 2 Beaufort and 8 Beaufighter.
Maybe another book?

It was in the First (paperback) and Second (Harback) editions – photo appeared in Air Pictorial around 1964/65. It was an ex-SAAF example.