Brt-3189. Wt = 3.23g
Photo from Randy Weir who wrote The obvious difference is the spikes protruding from the petals around the central hole, not sure why, but only 1 other photo I have has this just a touch on a few of the petals. Its’ weight is 3.23 grams. From the photos there is a variance in the strength of the birds at the upper right field. Also there is a small die ‘break’ into the field at 5 o’clock on some of them but not others.

Wt = 3.20g. Diam = 21.2mm. Axis ↑↑
Photo from Noonans, Oct ’24 (Puddester), lot 1643