This is a 1975 Swaziland gold coin with a denomination of 50 Emalangeni. It is uncirculated and has a fineness of 0.900, with an AGW (actual gold weight) of .1247 ozt. The coin was minted to commemorate the 75th anniversary of the birth of King Sobhuza II.  On the obverse it features a bust of King Sobhuza II and the reverse features a antelope.  It has been certified by NGC with a grade of PF 69 ULTRA CAMEO and a certification number of 6894001-015, this is 1 of only 18 coins of this type to be certified in this grade and only 1 has been certified higher by NGC , and this coin also has a very low mintage of only 3,262 coins being made. The KM number is KM# 26.