This is a BEAUTIFUL VINTAGE silver tone round link chain necklace with a silver tone and Swarovski crystal pendant shaped like a pawprint.  It is signed "TCS," which is Touchstone Crystal by Swarovski.  These were made in the late 1980s/early 1990s.  The chain is a very tiny round link chain with a larger oval link near the lobster closure for size adjustment.  This necklace is 18 inches in length when sized to its full extension.  The pendant is AMAZING, with pave-set Swarovski crystals in the pawprint that dangles inside a silver tone circle.  The effect is BEAUTIFUL!  This piece is in EXCELLENT CONDITION!