On hold 1940s Vintage Floral Brooch - Reverse Carved Lucite Unusual 'circle and dot' border

This oval vintage brooch is made from Lucite and dates from the late 1940s era. . Lucite is Dupont's Trade name for their acrylic plastic which they patented in 1936.  ICI used the name Perspex for their similar material.  In the Jewellery trade the name ' Lucite' is favoured for all acrylic pieces as it was the most widely coined term for American Jewelry. Just recently a collection of these early plastic pins appeared on the BBC Antiques Roadshow.   It is easy to see why they appeal - each one has been hand produced so there are natural variations in the style and design, the material is light making the brooches very easy to wear.  The 'see-through' nature of the Lucite makes the brooch take on a different appearance when pinned onto various coloured clothes. This brooch is clear with five different coloured open flowers in The Autumn palette of purple, brown, orange, apricot and yellow.  The brooch has a very chunky main centre and then has a thin lucite border which has been engraved with a 'dot within a circle' pattern which is most effective.  It is possible that this is a French piece as the vintage lucite brooches which come from France often have detailed borders.  The central dome section of the brooch measures 5 cms acrossif measured to include the border and it is almost 1cm thick approx.  The pin is heat set in place at one end and then there is a rolled over guarded type clasp.