Thanks for all the kind replies to this post. I'll try to answer all the questions.
First, I made the cabinet myself. It was an out-growth of shelves that I had made for some gun safes. This was a better idea, because the drawers pull out.
The cabinet itself is somewhat of a safe. There are two front full-length doors that lock. Inside those are the 6 drawers, each with two locks, one on each end of the drawer. The sliding bar of the lock goes in behind a heavy piece of angle iron, which is screwed into the cabinet frame. The locks are screwed onto the back side of the drawer front, and then another piece of wood is screwed over each lock. You can some of this detail
in the picture. The cabinet and drawers are all solid oak.
In the middle of the drawer is a tray of unfinished oak. This is a very recent addition. The tray is holding a bag of activated bamboo charcoal, to absorb gun oil odors. This works very well, and the bags are apparently rechargeable with an hour hanging in the sun.
The bottom drawer has two cans of Dry-Out, one in each corner. These suck the moisture out of the air.
The collection goes back at least 30 years, and probably few more. The offered barrel lengths were 4, 5, and 6 1/2, with 6 being a special order. The blue 8" was a special order. The nickel 8" barrel is factory. The 2 1/2", 3", 3 1/2", and 4 1/2" are all factory 38/44 barrels from the early 1950, that my machinist friend and I machined to become 1899 barrels. There is enough metal to form the forged front sight base, and enough for the flat under the barrel.
The 3", or the 3 1/2" guns are the best looking of the lot. I think that is the right size barrel for the 1899 frame. The 6" guns are the scarest, and hardest to find. The 8" barrels are one-of-a-kind. There is one other known 8" blue, but it was not original to the gun. There may be one other. I'm not aware of any other nickel 8" 1899's .
I did make one other design for the cabinet. It fits into a book shelf, and the front panel folds down, as someone suggested. This is a relatively narrow shelf, so there wasn't enough room to have the rack slide out. The guns are easily accessible, but there is not much of a view! I can post a picture of it, if anyone is interested.
Regards, Mike