A coin my aunt asked me to look up, all I can tell is it's a 10 yen. anyone able to tell me a year and value?
Showa 46 which is 1971. A very common coin in this condition, still worth face value at 10 yen or around 10 US cents, give and take exchange rate condition.
Yes, this is a Japanese 10 Yen coin, more info about building pictured is available on a Wikipedia page about the coin: https://en.wikipedia.org/wiki/10_yen_coin The date is Showa 昭和 46 四十六 Year 年 (Showa yon jyuu roku nen). Corresponds to the Western calendar date of 1971. These are still in circulation in Japan. For currency rates, try X-E: http://www.xe.com/