reading the signal…
Signals / Object / Mapped places
in Madrid, MD·counted·132 all time
Writing supplies and paper goods, including notebooks, envelopes, pens, cards, and decorative paper.
Counted, not streamed: Stationery has no time series, so it is read as a footprint across places. All-time count by city.
Things that physically exist: street furniture, signs, buildings. All-time counts.