EF key profile and two small cut outs on the bottom, also not the standard Schlage coining.
A section for displaying photos of unique and collectible keys.
mastersmith wrote:I don't know Squelch, it looks like the two odd cuts are between the chambers. This is strictly a guess, but I'm thinking ward cuts. Maybe to allow the key to turn where the operating key can't? Like bypassing a night lock function on a hotel? I don't recall ever seeing this.
magician59 wrote:This was for expansion of master key systems (Back when I had hair). The cylinders were grooved to accept "compression" rings, thet would restrict the operation of keys, unless they were cut in the appropriate positions to bypass the wards. Obsolete now. If you have the matching cylinder, you've got a collectible.
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