Dating vintage brooch clasps
Mary Johnson-Gerard began writing professionally in 1975 and expanded to writing online in 2003.
She has been published on the Frenzyness Divorce Blog and on Neumind International Pte Ltd.
Often, brooches were made by turning a pendant into a pin.
Antique and vintage brooches are commonly dated by the style of catch or by the design.
So you will need to date the whole necklace or bracelet generally.
Around about the late eighties to early nineties, the lobster style or claw clasp came into use.
Johnson-Gerard holds a doctorate in educational psychology from the University of Missouri.Post-1890, ball hinges were used and are still preferred today.Look for a C-shaped hook on the catch of the brooch.The lobster claw clasp in use today is a fairly new design from the late 1970s, as is the toggle clasp.
The spring ring clasp, introduced in the early 20th century, is the most common vintage bracelet clasp.On older brooches (around the turn of twentieth century) you’ll see that the pin extends well beyond the clasp. Although mostly seen on older brooches, some inexpensive brooches are made with C-clasps even today.The trombone clasp, patented in Europe in 1850, was named after the musical instrument as it had a tube with a round top. These were used in the latter half of the 19th century into the 1950s, mostly by European jewelers.They are commonly found on hand made brooches from the mid-20th century era, such as painted wooden brooches from Russia or micro mosaic brooches from Italy.