Watermark Study.
1881 issue of Austrian general duty revenues. Here is an absolutely wonderful grouping! Years of work to assemble if you could.

Watermark Study. 1881 issue of Austrian general duty revenues. The WATERMARK letters STEMPELMARKE occur in one place in the sheet, one letter per stamp.The watermark occurs upright, upright reversed, inverted, inverted reversed, sideways up and sideways down. Here is an absolutely wonderful grouping! Years of work to assemble if you could. A complete group of each watermark in each orientation! Only $235.

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