Yes, you have a 1961 model year Voit VCR-2 50 Fathom. It appears to be in very nice condition. The design is a downstream valve, and will deliver performance very comparable to the upstream systems like the Voit Polaris 50 and USD Mistral DW. The reg will breathe easiest at higher cylinder pressures due to the downstream design.
The 1960 and 1961 produced versions contain a removable HP volcano orifice seat, and an internal sleeve that controls the motion of the seat retainer unit (HP valve). Properly rebuilt, and with a silicone diaphragm, it will have a cracking effort between 0.9-1.1" on a cylinder pressurized to 2,400psi. When the cylinder pressure falls to around 500psi, it will have a cracking effort of approximately 2.5".
I suggest that you contact Bryan at vintagedoublehose.com and Rob at thescubamuseum.com to obtain the necessary parts to rebuild the reg. Of course, you already have a lead on the beautiful reproduction label from Simonbeans.
The Voit 50 Fathom is my hands down favorite DH reg. While on a dive trip with Simonbeans, I took one to 175ffw. Even at that depth, it still provided me with plenty of air flow.
Greg
