Hi, I PMed you to send links to my Flickr pages with photos of the lock I have. I received two cylinders from another member, and they both work perfectly. One is from a Chesler lock set, one is from a Bargman. Chesler went out of business a long time ago, so I feel fortunate to have 2 cylinders all of a sudden. I think because of the shapes of the face plates and handles, Chesler and Bargman lock sets look identical. Only when I removed the lock set from the door did I see the Chesler brand stamped into the non-visible side of the interior face plate and the back of the interior handle.
VTS does not have the cylinder I need, and you said they do not have what you need, either. Here are links to my photos, to see if they match what you need. I would be pleased to pass the Bargman cylinder on to you, more about that in a PM.
Unless the lock uses the identical cylinder type, with the blade that fits into the slot on the locking mechanism
, I would not count on being able to interchange parts. I suppose if that one part could be swapped out with one from another lock set, a cylinder with the right shape might be easier to replace from VTS or other parts dealer.
Links to my photos:
Entry Door Lock Set - a set on Flickr
Chesler Lock - a set on Flickr