Here is a great starter collection of porcelain insulators from outside the US as follows - all six for $15 plus actual postage:

U-1652 Czechoslovakia -- Theodor Pohl "T crossed with P" logo -- VNM

U-1493 Australia - no markings -- VNM

U- 1411 New Zealand -- incuse A on dome plus 72 in ink (likely by a collector) -- VNM

U-1647 Spain -- no markings -- VNM

U-1811 Germany export to Norway -- Ear top incuse with "Tri-delta logo" for Hescho -- VNM

U-1135 British export to Canada -- Incuse GISBORNE PATTERN - discolored base bruise - no chips