SUPPLEMENT TO THE GENTLEMAN'S MAGAZINE, London, 1770  This "Supplement" issue was produced at the end of the year. The prime content is the very nice & very detailed map, labeled in the cartouche as: "A New and Accurate Map of TURKEY IN EUROPE Drawn from the Best Authorities...1770" (see). This map shows the Balkan peninsula and includes the region from then-Germany, to Russia, to the Mediterranean, to the Black Sea & Turkey and includes the heel of the "boot" of Italy (see). Very detailed & in uncommonly nice condition, folding out to measure 10 1/2 by 9 1/2 inches (see). There is an article: "A Review of the Present State of the War between the Russians and Turks..." which relates to this map, and also an article: "Particulars of the Taking of Falkland Islands...".
This map is the only plate called for in this issue.
Complete in 32 pages. They did not use a full title/index page with the Supplements.  Measures 5 by 8 1/4 inches, very nice condition.