How many stamps have a face value of 37¢ and were printed in the banknote corporation of america?
CREATE TABLE "the_sheets" (
  "ecosystem" text,
  "date_of_issue" text,
  "place_of_issue" text,
  "no_stamps_in_sheet" real,
  "face_value" text,
  "printer" text
);
SELECT COUNT("no_stamps_in_sheet") FROM "the_sheets" WHERE "face_value"='37¢' AND "printer"='Banknote Corporation of America';