Ektachrome
Perhaps you have just discovered that you love old Ektachrome 2x2 slides just as much as I do.
You do if you are as happy as I am with the square format and the sort of abstract effect that age has given to the sharpness of these photographs--these images are straight from the slide to the jpeg file, with no color correction or Photoshopping to create that lovely look of layered paper or an oil painting.
The original images were taken by my dad in the early 60's with a film camera and, in some cases a tripod, using the standard color reversal slide film of the day.