Metal Composition: 90% Gold - 10% Silver and Copper
Diameter: 22.5 mm
Mass / Weight: 8.36 grams
What this coin looks like (obverse, reverse, mint mark location, special features, etc.):
There were two major varieties of the 1834 $5 Classic Head Gold Half Eagle. One variety features a plain "4" in the 1834 date (as depicted above). The "4" in this variety has a straight end on the right side - whereas the crosslet "4" variety has a cross at the end on the right side. The differences between the plain "4" vs crosslet "4" are easy to distinguish and is depicted below by the arrows in the example comparison image. Source of example images is courtesy of Heritage Auction Galleries:
Coin valuation chart: Typical coin prices, values and worth per grade or condition - in USD