Fender's parts lists identify 0055216000 as the part number for the bridge pickup in these Classic Series models: '50s Telecaster® '60s Telecaster® Highway 1™ Telecaster® I have SD pickups in my '50s Classic, but I still have its bridge pickup and I've tried it in my '98 Squier Standard. I was looking for something different for the Squier, so I bought a bridge pickup from gtrwrks that came out of his '60s Classic, because it had raised and staggered pole pieces. I'm pleased with the '60s Classic bridge pickup, but I'm intrigued by this difference in parts when Fender lists them as the same part number. Here are some pictures of both pickups for comparison: '60s Classic top view: '50s Classic top view: '60s Classic bottom view: '50s Classic bottom view: The difference in polepiece height is obvious. The '60s heights: 6th @ 1/32" raised above the flat 5th @ 1/32" 4th @ 3/32" 3rd @ 2/32" 2nd @ 1/32" 1st @ 1/32" Both bottoms have 048610 molded into the casing, which I believe is common to several pickups, maybe all Tele bridge pickups in MIM Teles? The '50s has the most significant digits of the pickup part number hand written in white marker, 55216. The '60s doesn't have any other numbers on the bottom, and has a couple of spots of what appear to be wax globs. Otherwise the pickups seem identical in appearance. My impression is that the '60s Classic pickup provides more clarity on all the strings, and better balance across the strings, than the '50s Classic pickup. Anyone else here have one of these bridge pickups in a '50s or '60s Classic or Highway 1, that has the raised and staggered polepieces instead of flat ones?