Help with translating this please!
Hi, my father and i have been trying to figure out what this symbol says and we believe it is chinese. any help would be much appreciated! thanks!
Hi, my father and i have been trying to figure out what this symbol says and we believe it is chinese. any help would be much appreciated! thanks!

the symbol is”宣德年“ . "Xuan De era"(1425-1435 Ming Dynasty)
king 朱瞻基