CREATE TABLE table_42927 ("Ecosystem" TEXT, "Date of issue" TEXT, "Place of issue" TEXT, "No. stamps in sheet" FLOAT, "Face Value" TEXT, "Printer" TEXT)

Which printer issued sheets on October 5, 2006?
SELECT "Printer" FROM table_42927 WHERE "Date of issue" = 'october 5, 2006'
SELECT "Printer" FROM "table_42927" WHERE "Date of issue" = 'october 5, 2006'