Spanning 1919 to 1935, the Estados Unidos Type 2 10 Cents catalog contains 14 year-and-mintmark variants.
Eagle exposing chest, with a snake in beak. Standing on cactus in the middle of a lake, with a laurel and olive branches tied together at base. And country name at top semi-circle.
Date at top. At center value in monogram fashion; a 10 on top of a C crossed by a diagonal from left to right. All encircled by two olive branches tied together. At center bottom the Mint mark.