Thanks David. Here's some interesting Macassar Ebony technical data for hard-core vintage 110/112 enthusiasts...
Diospyrus macassar, commonly called Macassar ebony, is not as plentiful as the African species, but its greater density makes it even more useful in certain types of manufacturing. With a weight of 68 lb/cu ft (1,090 kg/cu m), it is even more dense than African ebony. It has a specific gravity of 1.09, and also does not float. Macassar ebony is found mostly in the Celebes Islands of Indonesia, with some minor growth in India. The heartwood is frequently streaked with lighter bands, and this type is favored by piano makers. Because they are so difficult to dry, the trees are usually girdled to kill them and then left standing for two years to dry out. After they are felled and cut into lumber, they must dry for another six months.
Color/Appearance: Heartwood has dramatic striped appearance, somewhat similar to Zebrawood. Yellow to reddish brown body with darker brown or black stripes. Sharply demarcated sapwood is pale gold color.
Rot Resistance: Heartwood is rated as very durable; poor insect/borer resistance.
Workability: Tends to be rather difficult to work, due to its high density, blunting effect on cutters, and its occasionally interlocked grain. The wood is also prone to checking and splitting during drying, and drying defects are not uncommon. The wood is excellent for turned objects.
Odor: Macassar Ebony has a mild, slightly unpleasant odor when being worked.
Pricing/Availability: Likely to be extremely expensive, along with most other Ebony members in the Diospyros genus. The tree grows slowly, has a very limited natural habitat, and is highly desired for the woods aesthetic appeal and toughness.
Sustainability: This wood species is not listed in the CITES Appendices, but is on the IUCN Red List. It is listed as vulnerable due to a population reduction of over 20% in the past three generations, caused by a decline in its natural range, and exploitation.
Common Uses: Veneer, high-end cabinetry, billiard cues, musical instruments, and other small specialty items.