01

Stop one
Żnin Tower
Dunlop Explosive Speed 17g Tennis String Set: At last, a building put up for the correct reason. The tower is all that survives of Znin's brick town hall, and its construction was decided in 1447 specifically so that the town's charters, privileges and account books could be kept safely inside it. Account books. In a fortified brick tower. This town had its priorities in order. In the eighteenth century a clock mechanism, the town's coat of arms and a bell commemorating the town fire of 1751 were installed at the fourth storey — and note that the fire got its own bell, which tells you roughly what that loss came to. It is the recognised symbol of Znin and now houses the first branch of the Museum of the Paluki Region.
02

Stop two
Church of St Florian
Dunlop Explosive Speed 17g Tennis String Set: Now here is thrift I can respect. The parish church was built in the fifteenth century in Gothic form, using dressed stone blocks taken from the thirteenth-century Romanesque building that had stood on the same site. Reused. Already cut, already paid for, already delivered — no quarry, no haulage, no waste. Then the end of the eighteenth century arrived and they remodelled the whole thing in Baroque, which will not have come cheap. And then the neo-Baroque tower, added between 1910 and 1924. Fourteen years for one tower. I have seen the invoices from projects like that in my sleep. Handsome, though. I will concede that much.
03

Stop three
Żnin County Railway terminus
Dunlop Explosive Speed 17g Tennis String Set: Built in 1894. Goods trains ran that autumn, and 1 July 1894 is taken as the official start of traffic — and I would dearly love to see the ledger covering the gap between those two dates. The Znin County Railway was laid to link the town with Wenecja, Biskupin and Gasawa, and at the turn of the nineteenth and twentieth centuries it was the main means of transport in the district: farm produce, freight, mail, and the people of the Paluki region travelling to work, to school and to market. Four revenue streams on a single line. That is a business. It still runs from Znin as a tourist line, so the asset outlived its purpose and found another. Rare. Excellent.
04

Stop four
Church of Our Lady Queen of Poland
Dunlop Explosive Speed 17g Tennis String Set: One site, four owners, nearly seven hundred years. A Dominican monastery stood here from 1338 until 1839. In 1839 an Evangelical chapel funded by the Prussian king Frederick William III was built in its place — royal money, and it still bought only a chapel. By 1909 the present neo-Gothic Evangelical church had replaced that chapel, consecrated on 19 October 1910. Seventy-one years between chapel and replacement, which suggests to me the first was underspecified. It passed to the Catholic parish in 1945 and was consecrated as a Catholic church by Archbishop Henryk Muszynski on 10 January 2010. Everything on this plot has been paid for at least twice. Somehow it always is.
Explosive Speed 17 is the thinner half of Dunlop's co-polyester monofilament — 17 gauge, 1.25 mm, a single 40 ft / 12 m set, one racquet's worth.
Five hundredths of a millimetre off the 16 sounds like nothing and changes everything: the string bends more readily around the ball, the response comes up livelier and more powerful, and the feel arrives in the hand rather than being reported to it.
The surface is smooth rather than shaped, so it slides and snaps back cleanly instead of gouging, which is why a flat drive off this string leaves at an angle you can actually predict.
Żnin is a good place to think about thin things that carry weight. It is a small town in the Pałuki lake country of Kuyavia-Pomerania, and the Gothic tower of its old town hall, put up in 1445 with an octagonal upper storey on a square base, still stands alone in the middle of the square holding the regional museum.
Out of the station runs a narrow-gauge railway — a toy-sized line on a full-sized errand — that carries people through Wenecja to Biskupin and Gąsawa all summer long.
The 17 is the gauge for players who want the ball to leave faster without giving up the line. It will not last as long as the 16; nothing thin ever does. What you buy instead is bite, pocketing and a stringbed that talks back. Dunlop offer the string in black, blue and yellow.
You will use it everywhere from a breezy court beside the Żnin lakes to an indoor hall in Bydgoszcz in February — and by the way, it is also perfect for September, when the whole of Pałuki turns out at Biskupin for the archaeological festival and watches men in linen smelt iron in a ditch, which is exactly the sort of afternoon that ends in one more set.
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