A friend showed me a gun that was passed down through the family. It is a Hopkins & Allen XL-3 .32 cal revolver that showed no serial number, but I did not take the grips off. My question is: On the right side of the frame, at the loading port, there is nothing to cover the rear of the cylinder- my old Ruger Single Six has a similar loading gate, but it is covered by a swing-out cover. The pix I've seen of the H&R appear to be the same, sans door. Also, the cylinder spins freely, and does not engage with the hammer movement. Any guess as to how much work might be required to make the gun functional? Thanks for any info.