Move 15 1/2' farther east to locate a comparable pair
, NGC 1293 and NGC 1294, also just 2' apart as viewed from Earth but more than a hundred light-years apart in space.
(1) In particular, I estimated that two countries sharing a common currency will trade over three times as much as an otherwise comparable pair
of countries, holding other things equal.
Is it significant that a comparable pair
of figures appears a century later in a legal manuscript (plate 47) and in a manuscript from Battle Abbey that appears to contain diplomatic texts (plate 44)?