The expected price depends on condition. This includes any keyhole or other mounting hole issues, general surface condition, and whether or not there is any ink left. For a medium to heavy weight 20" pre serial 602 the range of values is huge: $120 up to $350 with everything in between. To get over $250 it needs to be special in some way, either quite light or have intact ink or be in excellent condition. Based on over 300 completed sales the median expected price is $180 with half selling for between $152 and $250. This analysis excludes any seriously damaged cymbals in very poor condition.
For the 19" it would most likely be a THIN or MEDIUM model from your description. They didn't have crash rides, but the MEDIUM would be the closest model. Based on 49 sales of 19" pre serial 602s the median expected price is $186 with half selling for between $152 and $220. I wouldn't read anything into the median price difference of $180 for the 20" 602s and $186 for the 19" ones. So basically the 19" cymbals follow the same distribution as the 20" cymbals. The number of sales of 19" is much lower because there aren't as many odd sizes as even sizes. My sample for 19" includes 7 concert models (which come in A, B, C1 and C2) and one Orchestral. Now that fact that I can identify these means they have model ink intact, which again adds to their expected value.
