Vintage Modernist Sterling Silver Amber Pendant good on Belcher Necklace 925 Gdansk Poland Organic

A large amber cabochon set into a modernist silver pendant, dating to circa the 1980s, but could be earlier. Solidly good made, and with hallmarks for Polish Gdansk silver, maker's mark K or LK?. Necklace tag ring is marked as mm 925 GERMANY, and chain measures approximately 25" long. Pendant and bale measure about 1 3/4" high - it's in a very good condition, with a little tarnish which you could polish off if preferred.