Solid bronze pull x pull deadbolt set from the Ashley Norton Urban Suite: 18 1/8" x 3" grips inside and out, keyed tubular deadbolt (no latch).
For 1 3/4" doors (see maximums in the Ashley Norton guide), standard 5 1/2" centers, 2 3/8" or 2 3/4" backset. Handing is required.
Cast from art grade silicon bronze (White Bronze from a manganese-nickel bronze alloy) and hand finished; patinas are waxed and will develop a natural, lived-in contrast with use. Dark Bronze is the most consistent and most often stocked.