Which Thickness has a Year of Issue smaller than 1983?
CREATE TABLE "five_cent_test_tokens" (
  "year_of_issue" real,
  "description" text,
  "weight" text,
  "diameter" text,
  "thickness" text,
  "edge" text
);
SELECT "thickness" FROM "five_cent_test_tokens" WHERE "year_of_issue"<1983;