Help Identifying Old Reg

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The issue is/was the second stage, assuming it has the balanced Royal second stage, the first stage is basically a Conshelf with an odd shape to it. The worst problem with them is the 1/2 inch LP ports. If you look on the one above (#9) , you can see an adapter in the lower port . Dive shops are bad for BSing you on regs they don't know or worse yet just want to sell you a new one. The second stage shown above is not the Royal model and is OK but it was subject to cracking around the hose connection.
Bottom line, the first stage is a funny looking Conshelf, likely the most proven design of any dive regulator ever made. It is serviceable and dependable. The second stages may or may not be serviceable depending on which you have. The balanced Royal, is a display, the plastic unbalanced ones are fine IF they are not cracked and the metal ones are almost indestructible.
 
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Herman do you know why that Royal 2nd stage was replaced/recalled?
The unusual extra exhaust on the side or less than optimal venture into a balanced 2nd stage?

The "flying saucer" had several official names.....Royal, Pro and Conshelf 30.......one of which had three 3/8" and one 1/2" LP hoses. The 30 came with the metal 2nd stage that had a black painted faceplate.
 
The second stage on the regulator was difficult to service and parts dried up almost immediately. The only other regulators I know of that used it were some under the LaSpirotechnique label.
CLICK HERE FOR MANUAL
 
https://www.shearwater.com/products/perdix-ai/

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