Hopefully someone will come across these however it may be a better idea to place them in the World Coins section of this forum. They are certainly nice looking but WC is not my area and I am a begginer. They look more like tokens than coins but I am totally guessing. good luck and welcome
L: Netherlands East Indies-Sumatra 1/2 Stuiver, 1820 KM#284.1 VG 1.75 F 3 VF 3.5 M: Malay Penninsula-Malacca 1 Keping, AH1247 KM# 8.1 F 5 VF 10 R: Malay Penninsula-Penang 1 Cent(Pice), 1810 KM#14 F 23 VF 50