Crazy paving
Thank you for the identification, Antonius. I inherited the deck from my old Tarot teacher, Madeline Montalban, who wrote an article on the Tarot each month in 'Prediction' magazine during the 1950s and '60s. She was a very knowledgeable magician who had studied with Crowley in the '30s and had many first editions of his books, including the 1944 edition of his book on the Tarot. She illustrated her 'Prediction' articles with cards from the Thomson/Leng deck, and I also inherited that deck from her.
Unfortunately, she had two black she-cats, sisters, called Lilith and Tanith. This pair bit and scratched anything they could get their paws on, and both Tarot decks are well mauled.
The Thomson/Leng remains the most powerful deck for me, because I pored over every detail while studying Madeline's articles in the late '50s when I should have been doing my homework. Evidence of a mis-spent youth perhaps, but it seemed to work out OK in the long term : )
Some day I'd like to acquire a Thomson/Leng deck in good condition. It has a very traditional English occult feel to it, evoking to my mind the magic of practitioners such as Dion Fortune.