◆1970s At that time, 100,000 yen! Base K18 Natural Opal Oval Tie Pin

◆Beautiful item from the 1970s, originally priced at 100,000 yen, made in Japan! Base is K18 (yellow gold), featuring a natural opal in an oval shape. Total weight is 1.1g. Opal dimensions: 13mm vertical, 10mm horizontal. ◆ At that time, it was priced at 100,000 yen. I believe it has a fairly large natural opal. Additionally, the base has the engraving K18 . ◆【Condition】It is in beautiful condition with no particular signs of wear. (Please refer to the photos for evaluation.) ◆ The clasp is not made of gold. ◆ Weight (measured accurately): 1.1g (excluding the clasp). ◆ Size: (Opal) 13mm vertical, 10mm horizontal. No dirt, tears, or odors... none.