Searching for a font used in an old book spine which is being repaired (Saint Thomas D’Aquien)

[cmss]

Hello!

I'm a bookbinder currently working on repairing a book which has the spine typeset in a font which I just can't find.

I was wondering if I could get some help in recognizing it.

 

Thank you!

[MissNobody]

Can you, please, provide more information? ISBN if applicable, year of print, publisher, whether it is already a custom binding etc. Also, if you have the book at hand, can you make a more detailed photo (better focused). This is way too compressed. It looks like a cut out of larger unfocused picture that was scaled up.