Thank you for submitting your item for appraisal. These appear to be 19th century japanese stag antler or bone netsuke. One is in the shape of a dog, showing an insert at the top and at the bottom, indidcating that this is a piece of bone. The carving and engraving is excellent. The hare or rabbit is well carved and shows clear signs of good patina / wear. The estimate is based on recent auction results. A true collector might be willing to pay more than the high estimate.