Regarding the wall calendar...
There's a long story behind the making of this calendar, but I will resume to the most important facts: I was lucky enough, after countless hours and days, to find several sources of the photos/images seen on each page from an advertising campaign booklet for TWA (found this on eBay with 9 images and on a TWA archive site with only a brief description and a list of all 12 images - this helped me to arrange them accordingly for each month). The back cover of the calendar was found accidentally on WorthPoint so I had to include it:
All the images were enhanced with Topaz Photo AI, cleaned up, then color and light corrected if needed. I also find a perfect match of the font used for the days. The text on the front cover was mostly made up, because I could only decipher the beginning of the text, so I added all the titles of the 12 photos/illustrations.
Regarding the Grand Canyon photo, I downloaded a few TWA 1940 timetable images from eBay while I was searching for photos of the Grand Canyon:
I looked at the image on the right and I said that it is not what I'm looking for, and forgot about it. But after a week or two I was browsing through the saved images and took a better look, and low and behold: it's 1/3rd part of the photo I was looking for (it is great to see some hidden details, but also two people on the rocks):
I used that image to do the best variant so far of the Grand Canyon photo:
I added a 4th color, the green one, for the calendar. For obvious reasons, only the front and back covers, with the March pages are in full resolution, the rest are at a lower resolution, but good enough to complete your own replica.
Have fun!