You can buy with confidence. Purchased from reputable large dealer. ACG is known for overgrading so the value is in the quality of the coin and the holder that started it all.

Mr. Alan Hager of Accugrade is the ONE invented of slabbing coin and also professional experts grading of coin & cards. Slabbing coin start in 1984 follow by PCGS 1986 then NGC in 1987. (Cited from: https://www.cointalk.com/threads/anyone-know-of-acg-accugrade.78648/)

This 1945 D 10C Mercury Dime is a remarkable addition to any coin collection. The coin is composed of 90% silver and was minted in Denver, United States. It has been certified by the U.S. Mint and graded by ACG Accugrade First Slabs, ensuring its authenticity and quality.

This uncirculated coin features the iconic Mercury design and bears the denomination of 10C. Its strike type is business and its fineness is 0.9. This coin is a must-have for any coin collector or history enthusiast.