Several weeks ago I cleaned up one of my trusty GEM 1912s' and placed it in the razor stand for daily duty. It was only then that I realized my stock of Ted Pella GEM PTFE-Coated stainless steel blades was down to only two. I stopped by my local CVS and picked up some Treet blades to tied me over, but these neither shave as well nor last as long as the GEM blades for me. I had almost resigned myself to place an order for another 200-blade package from Ted Pella, when I recalled seeing these blades available on eBay. The vendor mentioned in the text of his advertisement that his product is "USUALLY CALLED TED PELLA BLADES", although they are not sold in the normal GEM carton (which specifies all the product details on the top cover). I bought a lot of 50 and I have tried them... and there is something amiss here. These blades are GEM stainless (and are so marked), but they do not feel the same as the Ted Pella blades I have been using. I went so far as to put one of the eBay blades in my other GEM 1912 and conduct a short head-to-head comparison (right side, left side shave) between these eBay blades and one that was indeed purchased from Ted Pella, Inc. I found, to my dismay, they are not the same. The Ted Pella blade was smoother, shaved effortlessly, and was completely free of irritation. The eBay blade, however, was apparently not as sharp. The distinctive feel of each whisker being cut was quite noticeable. This became more problematic around my chin... ouch! I finished this shave with the genuine Ted Pella... Clearly, there is a difference. The outward appearance of the blades, however, are identical. Are Pella blades manufactured to a different standard than those sold by other outlets... or are these eBay blades something else completely? Perhaps seconds?