Vintage Cast Iron Latch with Openwork Fleur de Lis Design

This is a Vintage Cast Iron Latch with Openwork Fleur de Lis Design.  The latch, measuring 4.75" high by 2" wide (not including the latch bolt) by 0.75" deep, has a U-shaped handle which lifts up to move the bolt.  The body of the latch is square with a simple slit keyhole.  At the top and bottom is an openwork fleur de lis inside a Gothic window shaped border, suggesting that this latch may have been made to reflect Gothic Revival design.  There are two holes at the top and one at the bottom (all 0.375" in diameter) for attachment.  The back has been stamped "1939," which may be either the year of manufacture or the product number.  The manufacturer is unknown.  It is also not known whether this latch was used on an architectural door or on a furniture piece.  This Vintage Cast Iron Latch with Openwork Fleur de Lis Design is in Better Than Fair condition.  On both the front and the back of the latch, the surface of the metal is worn and rusted.  The key is missing.  However, the handle and latch bolt still work.