The Wood Box

I was looking for a book by Fernando Pessoa with a specifique poem I have read a long time ago when the seller of a second hand book store I have never noticed before, proposed me a sealed wood box with a selection of the portuguese poet writings. It was a little expensive, but the box itself was such a beautiful object that it was impossible to resist.
Until  now I just could not find the poem. On the other hand I own a exquiste colection of old books filled with the most incredible personal belongings (postcards, letters, train tickets), as the books where carried over a travel around countries I could not recognize at a first glance.
I'll post Pegasus from one of the covers and put it aside, or I'll spend the rest of the week investigating the material.