Vintage Real photo postcards Oxford College UK lot of 6 UDB not mailed

Description

There are 5 post cards probably from the early 1900's of Oxford University buildings.  Printed by Oxford Times Co. Ltd. Oxford.  None have been mailed and all have the early undivided backs.  All have been removed from the scrap book of my ancestor leaving paper residue, most not visible on front.  Please see photos.
Camera Bodeiam, Oxford -few tiny age spots on lower left?
Wadham College, Oxford - some paper on lower edge
Merton College, Oxford - tiny tear above name at top
Worcester College Gardens, Oxford
Keble Chapel, Oxford -
very minor wear on corners and tiny piece of paper on bottom edge
Divinity School, Oxford  - very minor wear on corners