Bob and Harold. Not Bosom Buddies, I'd Imagine

 Bob and Harold Lloyd shmoozing at a polo event.   

                           Bob, Harold Lloyd and Mrs. Lloyd

Note that Bob is carrying both his hat and eyeglasses with his left hand.  And the glasses almost disappear positioned in front of the dark hat.  Bob was quite practiced at being fully prepared for any cameraman eager to catch a star in a "candid" moment.