6.5mm x 10.5mm (2.5 x 4.25 inches)
5.5mm x 8.5mm (2.25 x 3.5 inches)
5.5mm x 5.5mm (2.25 x 2.25 inches) and
strips of 4 frames per strip, each frame measuring 4mm x 3mm (1.75 x 1.25 inches)
These are all approximate sizes but none are used in our modern consumer world. The wonderful thing is that they are hidden gems! They contain old pictures from 1919 to 1954 many I had never seen before. Check to see if you have any of these old, odd negatives and on Wednesday, I’ll show how I digitized each one.