Adding Two Very Rare Works in Ophthalmology as a Result of Antiquarian Bookselling Experience

In my over five decades in the antiquarian book trade I have handled many extraordinary and remarkable items, some of which are of bibliographical interest. In June my old friend and colleague Rick Watson of London sent me descriptions of the two extremely rare early sixteenth century works in ophthalmology which we had owned in partnership decades ago. These he had recently repurchased.  I had forgotten all about them, but when I read their description I realized that these belong in the medical bibliography; they are now entries 6932 and 6933.