Have a handfull of Schaefer Marine blocks from my boat. The photos have part numbers to identify each item.
2ea Schaefer #504-05 $10 each
2ea Schaefer #706-05 $19 each
4ea Schaefer #704-05 (older) $10 each
2ea Schaefer #704-05 $15 each
5ea Schaefer #300-34 $4 each
The prices are US $ and do not include shipping. These items are located in Corpus Christi, Texas.