501. Poet Allen Ginsberg reading on in public performance on May Day Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
502. Police and plainclothesmen surrounding antiwar protesters in downtown Tokyo demonstration Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
503. Police and truck-mounted monitors pursuing antiwar demonstrators in downtown Tokyo Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
504. Police monitors and antiwar demonstrators in downtown Tokyo protest Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
505. Police surveying street demonstrators in downtown Tokyo antiwar protest Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
506. Pond after construction and rock border Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: [ca. 1993] Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
507. Pond and pond vegetation Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: [ca. 2000] Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
508. Ponte Vecchio, or 'The Old Bridge,' over the Arno river Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: December 1998 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
509. Pooker the cat on front porch, Salmon Creek house Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: 1983 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
510. Porter carrying tin roofing, crossing wooden bridge Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
511. Porter Rai, guide K.P. Kafle, Sandi and Mark Sommer, on trek from Jiri to Shivalaya Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
512. Posters of deposed and defaced Communist leaders on May Day Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
513. Pottery Square Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: 1987 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
514. Prague's Old Town seen from cherry blossoms in a nearby park Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1990 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
515. Protest banners from anti-Vietnam War demonstration in downtown Tokyo Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
516. Protest placard depicting United States atrocities in Vietnam Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
517. Protest sign depicting President Johnson dangling puppet Japanese prime minister and dropping bombs on Vietnam Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
518. Protesters carrying sign depicting President Johnson mouthing words of peace while crushing a dove Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
519. Protesters debating tactics and strategy in anti-Vietnam war demonstration Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives
520. Protesters in anti-Vietnam War protest with protest flag Creator: Sommer, Mark Format: Photographs Collection: Mark Sommer Papers, 1966-2017 Date: May 1968 Institution: University of Massachusetts Amherst Libraries Special Collections and University Archives