Auction Update: RB31p Block of 12 Sold in Robert Siegel US Stamp Auction of April 6-8

RB31p

5 cent proprietary hyphen-hole block of 12

with plate block and bureau imprint

Siegel Opening:  $1,125

Sold for: $1,900

A high realization for this block of 12.  Scott does not list a price for the plate block.  See the actual result here:  Siegel auction result.  I did not buy this!  Image taken from Siegel auction listing.