I bought a brand new Pfaff 262 in 1968. It has the embroidery stitches, but there is a circular dial card, and it tells you what number to turn the dial to inorder to produce that particular design. I also have a Pfaff 130, made in 1950. It has attached to the back what is often called "The Coffee Grinder" but is also for stitching out individual designs, and many are the same designs that are on my Pfaff 262, but the dialing is totally different. It is something that the dealers in the U.S. added to the machine if customer wanted to purchase as an extra feature. I never really knew or heard of Pfaff having drop in cams but that doesn't mean they were not made, like the Singers had. My Pfaff 262 is the machine on the right in my avatar picture.