It is the model B-16 that was made between 1976-1979. You can watch it
HERE
It was sell for 220$ back then and is valued at 1340$ now from the McDermott site. IMO the the market value from McDermott site is not near the reality. If you sell your cue, you could perhaps have 500-600$ if it is in really good shape with the 2 shafts.