| submitted by /u/simplylocksmith
Im in a suburb of Detroit, Michigan. In the United States. Its a Schlage D series entry knob, with an 18″ backset. They were popular in the late 50’s through 60’s.. 5″ backset is very common still in my area. 18″ was more rare, but most of the doors have been replaced by now. I know of maybe 5 or 6 others in my area. That we still work on from time to time.
I work in the security field and was needing to get some keys duplicated, some of which are primus keys, one specific is a D145, the other a CP (or something). Anyway, I’m not finding anyone that is able to make them, or even has the blanks? Are these out there?
Is it possible for a key to open 2 different locks ona door?
Both locks being similar but required 2 different keys and the top one can’t open the bottom and the bottom can’t open the top one
Is it possible for a key that exists for a different lock on a different door to open these 2 locks?
I sell mailbox locks to property management companies all week long. Pretty sure these are for when they are getting the apartments changed over for a new renter though. I have gone and replaced mailbox locks for various customers as well, for me, the customer and not their landlord covered the bill. Hard to say whose responsibility it is, but I would say yours though since you lost the keys. It’s a really straightforward job, so it shouldn’t take more than half an hour for a competent locksmith. I think the last one I did, the bill came out to around $100 (service call, lock, and labor).