Here are five unusual porcelain styles as follows -- Actual postage addtitional -- All are VNM to Mint.

U-1813 incuse in the ear SCHOMBURG / 1914 -- German make for export to Norway. Scarce Large early piece! - $12 (SOLD)

U-1471 cool side tie piece from Denmark -- $8

U-2801 unmarked Hi-top style from Norway -- $10

U-1801 Incuse IFO on ear top - from Sweden -- $6

U-1801 Incuse with anchor logo and 1947 date -- $6

Take the remaining four for $25