2nd Latin Bible by Johann Gutenberg at Mainz, Germany in 1452 - Joshua to 2 Kings

Book #404 - 2nd Bible & 2nd Latin Bible. Printed by Johann Gutenberg at Mainz, Germany in 1452. This Book comes from Volume 1b, it had Joshua to 2 Kings. There are 18 Bibles in libraries today from 1450 & 1452. I only have 3 pictures from the 1450 and only 2 pictures from the 1452. I sent letters to all these 18 libraries but only got answers from 2 of them. I have never found a person to help me with these pictures. All libraries are not interest to find that I teach that Johann Gutenberg made at least 4 different Gutenberg Bibles. All profit goes to the National Library at Vienna, Austria!