Seems undergraded. My 1800 LIBEKTY
Half Dime is in an ICG VF-30 holder and I always considered the grade to be reasonable. It looks to me like your coin should be graded a couple notches higher than mine.
I was told the weakness on the reverse of my coin was due to die damage and most examples show this effect. Interestingly, your 1805 also has somewhat similar areas of weakness on the reverse.

