3 Vintage ? Silver Halloween Spider Web Brooches with Turquoise & Onyx.

Out of a Local Estate.
3 Brooches, each with a similar design of a Spider on a Web.
None of them have any Marks.
Approx.  19.7 grams total.

1) Silver with a small 5mm Blue Turquoise.
***(Exact Silver content or percentage unknown, but tests close to Sterling).***
Approx.  1.4" long x 1.3" wide.
Good overall condition with use wear, tarnish & minor scratches.

1) Low percentage Silver or Silver color Metal with 10.5mm & 4mm Black Onyx.
Approx.  2.05" long x 2" wide.
Good overall condition with use wear, minor tarnish & minor scratches.

1) Silver with a large twisted Silver Wire Spider.
***(Exact Silver content or percentage unknown, but tests close to Sterling).***
With the Bale, approx.  2.4" long x 2.3" wide.
Good to Fair overall condition with use wear, tarnish, bends & loose pin.