If there is a berry just right of R in DOLLAR on the reverse, then check the obverse to see if there is an overdate 8/7 on the second 8 in the date. If there is, then this is POSSIBLY a genuine BG-1067 round half, (Breen and Gillio wrote the standard reference on California fractional gold, the book is quite expensive and near-impossible to find). If real, it's ranked R.4 or fairly common within the context of these valuable coins. As mentioned, do NOT scrub, polish, or otherwise try to improve it in any way!
On the reverse, if there is a berry northeast of the R in DOLLAR rather than just right, then it MIGHT be a BG-1068, High R.5 (rarer): Thin date on the obverse, portions of the digits missing (esp. lower part of 1).
The images prevent any better assessment at this point. Learn to use the Image Optimizer here and post larger-resolution images of both sides. Good luck!
Best Regards,

George
Edited by giorgio11
04/19/2014 08:55 am