There are only two embossing variants of this rare Brookfield CD 287.2. One, [010] in the McDougald price guide, has a Narrow dome style. The other, [020] has a wide dome.

Although they have the same book value, it seems to me to be more difficult to find the wide dome style.

If you are wondering which type you have, here is a comparison. The shape of the two is a bit different all over, and not just in the dome.