While I'm certainly not doubting your attribution skills, we have many experts here on this forum. I would suggest first verifying that you have what you think you have. Of course it goes without saying that good pictures are a must for any doubled die.
Having said that, if you could post some photos, folks here are sure to reply with answers and then ultimately help to your question of where to grade. As a general rule of thumb, you will want to stick with the big 3 grading companies: PCGS, NGC, and ANACS. PCGS still brings the most resale money, but some types of coins are better in certain holders.
Oh, and welcome to the forum. I took the liberty of moving this to the grading section since it is probably a bit more relevant.
Having said that, if you could post some photos, folks here are sure to reply with answers and then ultimately help to your question of where to grade. As a general rule of thumb, you will want to stick with the big 3 grading companies: PCGS, NGC, and ANACS. PCGS still brings the most resale money, but some types of coins are better in certain holders.
Oh, and welcome to the forum. I took the liberty of moving this to the grading section since it is probably a bit more relevant.



















